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本教程适用版本：WPS 365 点击免费使用
数据透视表的“选项”可以设置数据透视表的布局格式、汇总筛选、显示和数据。
▪以此数据透视表为例，我们可见该数据透视表中含有错误值。
那如何隐藏或者自定义设置错误值显示样式呢？
在插入数据透视表后，点击上方菜单栏分析-选项，此时弹出“数据透视表选项”对话框。
在布局和格式处，勾选格式“对于错误值，显示”并输入显示内容，这样就可以自定义设置显示错误值样式了。
Globally operating manufacturer of silicones, lube oil additives and other specialty chemicals BRB International now rebrands to reflect its journey as a subsidiary of Petronas Chemicals Group Berhad.
By acquiring BRB, Petronas Chemicals Group Berhad (PCG) has expanded beyond its traditional oil and gas portfolio. According to the caompany, lube oil additives, BRB’s core competency, play a key role in enhancing the sustainability and efficiency of machinery and vehicles operating under different conditions and even at extreme temperatures.
Starting as a small business in the Netherlands in 1981, BRB has grown vigorously to become an international corporation with over 300 employees across 11 locations. PCG is the leading integrated chemicals producer in Malaysia and one of the largest in Southeast Asia.
Keyword: rehabilitation gloves factory
Time to read: 9 min
Remember the clunky, brick-sized, beige-colored cell phones the 1980’s used to carry around? That’s what today’s environmental sensors remind Will Hubbard of. Will is the COO and co-founder of ChemiSense, a new player in the environmental sensor space that’s working on an air quality sensor that’s smarter, sleeker, and cheaper. And definitely not beige.
It all started in an industrial engineering class at UC Berkeley, where an undergrad majoring in entrepreneurship named Will and a grad student in chemical engineering named Brian happened to sit next to each other. The two got talking and before long Brian’s research that he’d done over at CalTech on new chemical presence detection technologies sparked an idea. That idea became ChemiSense.
Excited about changing the world of environmental sensors, Will and Brian founded the company before the course ended and went through an accelerator, the well-known Plug and Play in Sunnyvale. Still in the pre-seed stage, they are already being courted by serious industry customers.
In this Spotlight, Will shares with us the joys and challenges of redesigning a manufacturing process that’s been around for decades—and raising the bar for an entire industry.
“In the larger scheme of things,” says Will, “we’re pretty passionate about the environmental sensing platform as a whole; about improving environmental sensing across multiple factors that have been holding back a lot of progress and innovation.”
It’s one thing to recognize a market segment ripe with potential, quite another to build a successful company—and one that redefines a mature sector no less. As with any new, ground-breaking product, Will and Brian had to nail down what differentiated their sensors from entrenched competition.
“To us, it seemed environmental sensing was stuck 50 years in the past,” Will explains. “The sensors on the market today are complicated, physically large machines. They can only detect one or maybe two elements or chemicals—say, carbon monoxide or nitrogen dioxide—and you have to handwrite all of the measurements to record them. They don’t detect elements inherently—you need to get microcombustion and all sorts of scientific acrobatics going just to get a viable reading. And then there’s the extremely high price point: $3,000 and up for an air quality sensor. We felt we could do much better, orders of magnitude better in terms of performance and price, and launch a new wave of environmental sensing. So, that’s where we started.”
The first limitation of traditional air quality sensing that Brian and Will worked on was detection scope, or the range of elements that a sensor is able to detect. ChemiSense sensors can pick up intel on three areas of air quality: comfort and health-related elements such as air pressure, temperature and humidity; indoor as well as outdoor chemical pollutants; and two categories of particulate matter according to micron size.
You know, all the things we can’t see or smell but sure can tell when we react to them: pollen, dust, dander and all manner of other allergens.
Then there is visible—in some countries tangible—pollution like smoke, soot, and smog. And the worst offenders, chemicals like benzene and formaldehyde (What? Really? Yes, really.) that you can’t smell, see, or react to until years later when they’ve built up in your body, because they’re small enough to pass through your lungs and into your tissues.
All this is ChemiSense territory now.
The second limitation the ChemiSense team tackled was detection sensitivity. Will explains: “We can capture not just the off-the-chart levels people typically look for, but all the fluctuations in air quality that naturally occur because… well, it’s air.”
Case in point: Brian and Will took a little road trip around the Bay Area recently, their car hooked up with three sensors. They recorded air quality measurements as they drove, and created a heatmap of the findings.
“We could see clearly which areas were good, which ones were moderate and which ones were dangerous to your health,” reports Will. “In real time and in specific locations. Like the Dumbarton Bridge, where things tend to smell funky. Surprising to us, the whole Palo Alto area was significantly worse than San Francisco. As we passed by the SFO airport, our sensors reported that air quality dipped.”
Will and Brian compared their heatmap against the Federal government’s air quality report, which said the entire Bay Area was green (i.e., all good). Translation? ChemiSense sensors are much more sensitive and provide more actionable data. With real-time heatmaps and historical trend and plume analyses, says Will, “we can provide people and communities with a solution they can use. For example, if you want to go out for a jog or roll your car windows down during your commute, you’ll know which route to take. That’s our long-term vision.”
The heatmap exercise was so convincing that the Harvard Medical School is now working with ChemiSense on air q-mapping the greater Boston area.
Next up, size. “A gas chromatography sensor is the size of a table and a traditional air quality sensor is like those 1980’s cell phones,” says Will. “Who wants to carry that around?”
Still, the company’s devices are no smaller than the palm of an adult’s hand. Wearables are all the rage, so one wonders why a hot new industry-disrupting company like ChemiSense would steer away from wearables and focus on stationary sensors.
Will shares that the team did in fact start out focusing on a portable sensor that could be embedded in fabric or other materials. “Finding ways to incorporate the hardware into a wearable sensor is certainly a long-term focus for us,” he says, but explains that when they were in the process of iterating prototypes to get down to a smaller, wearable device, a number of companies approached ChemiSense saying, “Hey, we don’t want to wait. We want to embed the devices you guys have now into our products.”
What was it about these intermediate prototypes that the companies found so attractive? See above: the detection scope. “There are so many different factors that go into air quality,” says Will, “and our devices detect them all—and are still much smaller than the traditional sensor.”
For companies dealing with everything from employee health and regulatory requirements to fugitive emissions and early leak detection, a full-scope air quality sensor is a dream come true.
Not to mention the sensors ChemiSense builds are also extremely low power—they run on less than a milliwatt.
When large customers come knocking, you don’t shut the door. To Will’s and Brian’s credit, instead of turning those companies away with a “come back when we’re done” note, they recognized the opportunity staring them in the face and immediately pivoted to take full advantage of it.
“It really made sense for us as a brand new company to establish our foothold in the market with the devices that we already had, and to turn them into viable products as quickly as possible for these customers, because there’s such a high demand for them,” says Will.
Customers are now asking for 500, 1500 devices at a time, and that requires scaling reliably and consistently.
“This is why having the right tools is extremely valuable, and by that I mean firms like Fictiv or even your own 3D printers,” Will says. “We’ve seen a lot of great results from the prototypes that we’ve developed with Fictiv. We 3D print our outside casing, since we need constant air flow over the sensor, and the housing for the internal selectively permeable membranes that we use. Having manufacturing and design partners we can rely on to produce prototypes quickly and consistently is nothing short of business critical.”
Manufacturing physical products naturally requires physical facilities, but not all labs are created equal. Will and Brian were fortunate to be part of the broader University of California system, which offers great resources like the QB3 network, a series of private labs at universities throughout the Bay Area. For ChemiSense, a highly tech-focused company, QB3 was on their radar from the word go.
“You have to apply to get into the labs,” says Will, “but once you’re accepted, you maintain full IP ownership and you get to share a lot of the resources, like having a fume hood and access to profilometers. The fume hood sounds really simple but it’s key, absolutely key if you don’t want to be intoxicated by all the noxious gases your devices are supposed to be picking up.”
As for the profilometers, those are “very expensive” machines that can tell you how many atoms thick each polymer blend film is. “That’s extremely important for optimizing the performance of the sensors,” says Will.
From Apple to Stanford’s d.school, design permeates our world. It colors the way we think, the way we create products, and the way we relate to our society. Why should only clothes, shoes, and cars be fashionable and sexy? Why not environmental sensors, too?
“We wanted to create an air quality sensor that not only works extremely well, but one people can actually afford, enjoy interacting with,” says Will, “and benefit from in terms of comfort and health.”
Translated into design speak, this means turning the device inside out and re-inventing it from the ground up. Design weighs heavily in every aspect of ChemiSense’s approach, from the color, shape and materials of the casing to controlling for airflow and defining the precise path of analytes as they pass over the sensors, which is critical to improving their efficacy and performance.
“The technology we use is polymer-based,” explains Will. “We use 20 or so different polymers, treat them with various conductive materials, and then optimize the ratios of these blends specifically for the chemical or element we are trying to detect. So we end up with a material that inherently detects the target elements, without needing to make the sensor microcombust to make it work.”
Yes, you heard that right: traditional air quality sensors have a microcombustion chamber that heats up to a balmy 300 degrees Celsius. You then measure how much of the air inside combusts, compare that to a baseline of non-combusting air, and analyze the differences in… you get the idea. Not simple. Not elegant. Not practical. Certainly not portable unless you’re wearing an Iron Man suit.
But ChemiSense goes further still: the sensors are placed into an array so that they can talk to each other. If one sensor reacts a certain way, ChemiSense’s proprietary algorithms can compare that reaction to the responses of all the other sensors on the array, as well as how they’ve historically responded. The entire device functions as one.
Just how did this simple yet sophisticated design come about? Confesses Will, “we actually took sort of a weird approach. We worked almost entirely on the hardware first before we got into software, and that was because the software end we had already all planned out.”
He pauses, and clarifies. The company developed their own prototyping process that involved an internal software model of how they thought things should behave, then used that model to work through all the hardware iterations and development. Once they were sure the hardware worked the way they wanted, they readjusted the entire model to make it more accurate for the next iteration. And only then did the team feel they were ready to wrap the software shell around the device.
“We kept pushing the sensitivity limits further and further with each iteration,” says Will. “Optimize, optimize, optimize, adjust, adjust, adjust. And we built in an automatic software calibration which…”—Will pauses, taking a breath for impact—“which we don’t know has actually been done before for environmental sensors. You cannot afford a false positive or a false negative. So you need to detect everything. You need to see ‘what everyone’s thinking.’ ”
Indeed. In a world awash with a veritable soup of pollutants, testing for one or two elements seems a bit antiquated.
Brian and Will’s passion for a smarter, simpler, more functional air quality sensor has already become material reality: they have redesigned the way it’s built, what and how much it detects, how it works, how it’s used and how much it costs. They are redirecting more than just air flow; they’re shifting the direction of an entire field.
“The metrics of environmental sensing don’t really change from sector to sector,” says Will, “or even between consumers and industry, so that’s a blessing in disguise for us because we can focus on creating the overall platform rather than just individual products.”
But the two are careful not to veer off the path of humility. For them, the big challenge that remains is how to maintain that star sensor performance and device-to-person relationship as they scale up to respond to what we all hope will turn into some serious industry and consumer demand.
A newly published paper focuses on the electrophoretic deposition of tetracycline loaded bioactive glasses/chitosan as antibacterial and bioactive composite coatings on magnesium alloys.
Electrophoretic deposition (EPD) is a coating technique which is widely applied to improve the biocompatibility and anticorrosive performance of medical metal alloys. In a new work EPD was employed to deposit bioactive glasses(BGs)-chitosan(CS) coating loaded with model drug tetracycline(TCH) on AZ31B magnesium alloy to enhance its anti-inflammation, anti-bacteria, anticorrosion and osteogenic induction properties. The electrochemical test showed that the corrosion current density of CS-BGs-1.0 TCH coating was 2 orders of magnitude lower than that of bare AZ31B.
In vitro biological activity revealed that after 3 d of immersion in simulated body fluid, the surface of the coating was covered with a layer of hydroxyapatite. In vitro drug release test showed that the drug in CS-BGs-1.0 TCH could be effectively released for 504 h, providing resistance to the formation of bacterial film in a long time. In vitro antibacterial tests indicated that the coating significantly improved the antibacterial activity of magnesium alloy against E.coli. As a result, the prepared coating had better corrosion resistance, antibacterial and biological activity. This coating has good potential in the application of medical devices and bone implant materials.
The study has been published in Progress in Organic Coatings, Volume 184, November 2023.
Time to read: 5 min
Post-processing improves the properties of plastic injection molded parts so that they are ready for end-use. It includes corrective actions that remove surface defects and secondary processes for decorative or functional purposes. For example, post molding operations can remove excess material (known as flash) or apply part numbers.
As its name suggests, post-processing always occurs after injection molding is complete. It adds costs, but these costs may be less than what you would pay by using more expensive tooling or materials. For example, painting parts after molding may cost less than using an expensive colored plastic.
With injection molding, there are six common types of post-processing activities.
Within each process, there may be variations. For example, there is more than one way to paint injection molded parts. By understanding all of your options, you can choose the right post-processing for your next project.
Flash mars the finish of molded parts and can interfere with sealing, sealing, and assembly. Typically, this surface defect occurs when excess plastic is forced from a mold cavity at the parting line or ejector pin locations. Quality tooling limits the amount of flash that is created, but gate trimming may still be needed as a secondary operation.
Gates are openings that allow the molten plastic to enter the mold cavity. Although most of this plastic solidifies inside of the cavity to form the part, some material solidifies at the gates and protrudes. Gate trimming, or degating, removes these protrusions either inside the injection molding machine or after part has been ejected.
Painting is a form of post-processing for plastic injection molding that adds colored coatings to molded parts. Injection molders can use colored plastic instead, but pigmented polymers tend to be more expensive. In-mold painting is another option but may not be as cost-effective as painting after the fact. Coatings that provide shielding against electromagnetic interference (EMI) are also considered to be post-process painting.
Typically, however, plastic injection molded parts are painted for decoration or to hide surface defects. Prior to painting, cleaning or sanding may be required so that the paint will more readily adhere. Plastics with low surface energy, such as polyethylene and polypropylene, require plasma treatment instead. This process increases surface energy so that there is a stronger molecular attraction between the paint and the plastic. Plasma treatment is cost-efficient, especially in comparison to deep cleaning.
There are three parts-painting methods.
With each of these processes, it’s possible to achieve virtually any color in a gloss or satin finish.
Laser marking is a fast, tool-less process that can eliminate the need for surface preparation while imparting high-resolution effects to plastic injected molded parts. Like painting, it provides an alternative to in-mold painting and mold-in graphics, both of which apply decorative effects during the injection molding process.
During laser marking, injection molded plastics undergo visible surface changes made by a solid-state pulsed laser. For crisp, clear markings, the light from the laser needs to have a wavelength that the molded plastic will absorb. Often, laser marking is used to produce logos or apply unique identifiers to parts that require traceability. Examples include medical devices and aerospace parts.
Because the term “laser marking” is sometimes used to describe several different laser technologies, it’s important to discuss your requirements with your service provider. Traditionally, laser marking refers to the process of producing surface discoloration in black or gray to create letters, numbers, or logos. Laser marking provides an alternative to conventional printing but is not suitable for plastics that resist color changes.
Pad printing is a conventional marking process that transfers a two-dimensional (2D) image onto a three-dimensional (3D) object. First, a transfer pad is pressed onto an ink-filled plate that has been etched with the desired image. The inked pad is then placed over the injection molded part and pressed against the part’s surface to transfer the ink and apply the image.
Pad printing can be used on irregular shapes or surfaces. It’s ideal for transferring detailed images and provides good print quality. Quick-drying inks speed processing times and help to avoid problems with dripping, running, or smearing that can occur when ink is applied. Transfer pads and inks are subject to airborne contaminants, however, so quality assurance is a critical part of the process.
As a form of offset printing, pad printing can be used to add single-color or multi-color graphics and lettering to a wide range of plastic materials. Applications include toys, sporting goods, and housings for electronics and appliances. Although pad printing equipment varies, most machines have an ink cup, shuttle, and transfer pad. Process automation supports higher volumes.
Heat staking installs metal inserts into plastic bosses and housings. Typically, these inserts are threaded to support the use of screws during product assembly. With thermoplastic staking, as this process is sometimes known, heat is applied to the metal insert so that the plastic softens as it is pushed into the part. Like the injection molding process itself, heat staking melts the plastic at a specific temperature and pressure to achieve optimal fill.
Applications for heat staking include joining molded plastic housings to printed circuit boards (PCBs). This assembly technique is also used with the plastic bosses in automotive door panels. In addition, there are applications for heat staking with consumer appliances such as coffee makers. For almost any type of plastic, thermoplastic staking can produce strong joints. Its low insertion force also supports the use of metal inserts with thin plastics that could split or shatter.
Ultrasonic welding is a joining process that uses high-frequency ultrasonic acoustic vibrations to create a solid-state weld between two pieces of plastic. An ultrasonic horn vibrates between 20,000 and 40,000 times per second while maintaining slight contact with the plastic. This vibration produces friction and, in turn, enough heat to melt the plastic. To ensure that parts don’t move as they cool, a clamping force is applied for a specific hold time.
Like heat staking, ultrasonic welding provides an alternative to insert molding, the process of molding a plastic around a non-plastic part. Whether vibrations or heat are used to melt the plastic, the softened resin flows into voids and then hardens to form a firm bond with the insert itself. Often, ultrasonic welds are used in medical devices because they eliminate the need for chemical solvents and adhesives that may raise biocompatibility concerns.
Post-processing for plastic injection molding is the last part of the production process. However, that doesn’t mean you have to wait until the end of your design process to consider flash removal, painting, laser marking, pad printing, or whether to handle threaded inserts with heat staking or ultrasonic welding. In fact, thinking about post-processing sooner rather than later could save you time and money in the end. Fictiv wants to help you with your next molding project, and our experts can help figure out which type of post-processing is right for you! Contact Fictiv for a quote today.
‘Tis the season for beachy waves! The undone, messy, casual hairstyle has long been a classic for day-to-day wear and red carpets, but they really shine come summertime, when you can actually get the look from hanging out in water or mimic that just-left-the-pool vibe with wave sprays. We need to know which styling products were behind Selena Gomez's new beach waves, because they're so good even the ocean is jealous.
Gomez wore the waves to a Rare Beauty event to celebrate the launch of the brand's new True to Myself Pressed Finishing Powder. Hairstylist Marissa Marino, who often works with the actor/singer/beauty brand founder, parted Gomez's long, brunette hair in the center and styled it in perfectly imperfect tousled waves. They're not uniform throughout, which is part of the magic; some are subtle bends, while others are nearly loose ringlets. Though the majority of Gomez's hair is a smoky espresso color, she's got a few micro-highlights woven throughout to pick up the light and add dimension.
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Makeup artist Hung Vanngo added a rock ‘n roll edge to the beachy waves with a winged-out smoky charcoal gray eye and fluffy, brushed-up brows, plus peachy lips and cheeks. As for her nails, manicurist Tom Bachik kept things simple with a milky pink shade on medium-length, oval-shaped nails. (It's Aprés Nail Gel Couleur in Forgotten Film, if you're curious.)
If Gomez's hair looks a lot longer than you remembered, that's because it is! She's definitely added some length post-Cannes Film Festival, when she promoted her film Emilia Pérez in a chic long bob. Now, her waves fall way past her shoulders, and the length paired with those pitch-perfect beach waves is actively convincing me to skip my next cut appointment.
Want to DIY your own Gomez-inspired beach waves this weekend? Check out our roundup of the best sea salt sprays and get to spritzing!
More celeb hairstyles we love:
Now, watch Alia Bhatt's “sunburned” makeup routine:
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Time to read: 2 min
There are a ton of books I’m excited to read this holiday, recommended to me by friends and colleagues, or lingering on a list I’ve carried for a while this year.
Here are my top reading picks, centered around design trends, uncovering creative potential, and the key elements of lean, user-centered design.
This one takes a look at how design tools and processes have been changing and forecasts where design is headed in the coming years. Great one to stay on top of the trends and get a sense of how design fits into the future world we’re building.
In this book, Stanford Professor Tina Seelig — someone I greatly admire — argues that creativity is not a gift we’re born with, but rather a skill that can be learned. She works to demystify the nebula that is creativity to give anyone and everyone the tools neccesary to do creative work, and do it well.
This book is all about customer-informed product development, which I see as the foundation of user-centered design. Great for Designers and hardware startup entrepreneurs alike.
“Lean” is a term most of us are familiar these days — here’s a guide to lean UX technqiues to design products customers love, and reduce the time it takes to get that product to market.
This one explores similar themes to inGenius — brothers David and Tom Kelley (IDEO founder and partner, respectively) explore how every person is inherantly creative and identify a few strategies for tapping into creative potential at work.
This one was actually given out to each Fictiv team member this year, so I’m excited to give it a read. It’s written by the Co-founder of Pixar, where he shares the working environment he fostered at Pixar to protect and fuel the creative process and defy convention.
As you can see, the major theme of my reading list this year centers around creativity. I’m excited to get inspired by some of these stories, reminding myself that creativity is a skill that’s fostered and forged.
Hope this is helpful — add some inspirational reading to your holiday plan!
A new study provides insights into composite coatings for improving the weatherability of titanium dioxide white pigments.
Several inorganic coatings, such as ZrO2, SiO2, Al2O3, and AlPO4, have been utilised in the TiO2 pigment industry in order to reduce the natural photoactivity of TiO2 nanoparticles. However, the different role of each material in impacting the TiO2 photoactivity lacks comparative studies, and this is critical to provide a composite coating strategy for TiO2 pigments to achieve optimal weatherability. A new work has shown that each of these coating materials plays a unique role in suppressing the TiO2 photoactivity.
For instance, ZrO2 and AlPO4 increase the rate of charge recombination, while SiO2 reduces it. By comparing and analysing their effects on the charge carrier processes, the researchers have designed and created a composite-coated TiO2 pigment that features a sequential deposition of ZrO2, SiO2, and Al2O3. The product has been proved to exhibit excellent weatherability.
The study has been published in Journal of Coatings Technology and Research, Volume 20, Issue 6, November 2023.
A recently conducted study introduces a pectin/agarose-based coating functionalised with Piper betel L. extract for enhancing storability of postharvest bananas.
The goal of a recent study was to produce an active coating on bananas storage at 20 °C and 64 %RH using a combination of pectin and agarose (PeA) supplemented with Piper betel L. leaf extract (PBE) to extend their shelf life. The introduction of 30 wt% PBE into the PeA film improved the tensile strength, flexibility, UV resistance as well as antioxidant and antibacterial properties of resulting films.
The coating solutions, containing PeA functionalised with PBE, were applied for prolonging the shelf life of postharvest bananas using the dipping method. Scanning electron microscope (SEM) analyses showed that PeA coating solution enriched with 30 wt% PBE (PeA-PBE-30) coating effectively sealed and uniformly dispersed on the fruit skin. Besides, PeA-PBE-30 coating can significantly reduce the respiration rate of fresh bananas during 8 d storage period. Other factors including weight loss, total soluble solids, and pH were also reduced, while the retention of titratable acid also indicated the protective efficacy of PeA-PBE-30 coating compared to uncoated fruits and other treatments.
The study has been published in Progress in Organic Coatings, Volume 185, December 2023.
Reading tip
The EC Tech Report Bio-based Coatings is a hand-picked compilation of all the key aspects concerning bio-based coatings, offering the latest technical developments. Leading R&D experts present their various binder developments, how binders can be produced sustainably and also how the performance of your coatings can be optimised. Exclusive market insights and data as well as an impressive package of digital bonus material round off this Tech Report.
QT5-15 Fully Automatic Concrete Cement Brick Hollow Block Making Machine
Siemens brand PLC control system / Siemens motor / Omron switch/ International standard steel
QT5-15 block making machine is the latest developed equipment product, which is special purpose equipment for making building block making machine. The material can be fly ash, slag, gangue or other industrial waste, river sand, gravel, cement, etc. Make different sizes of hollow blocks, porous blocks, curbs, pavement blocks. If you add a color machine, you can make layer blocks.
QT5-15 block machine full automatic ,adopts Siemens brand PLC and Touch Screen .Vibrate motors also Siemens brand. So our machine runs stable and effective . Our machine makes the blocks with very good density and high quality. I am sure you will satisfied with it.
| Technical specifications | |
| Overall Dimension | 5120*1950*2810mm |
| Cycle Time | 15-25s |
| Total Power | 26.5KW |
| Pallet Size | 1100*550mm |
| Raw Materials | Crushed stone, sand, cement, dust and coal fly ash, cinder, slag, ganaue, gravel, perlite and other industrial wastes. |
| Applied Products | Concrete blocks, solid/hollow/cellular masonry products, paving stones with or without face mix, garden and landscaping products, slabs, edgers, kerbstones, grass block, slope blocks, interlocking blocks, etc. |
| Applied fields | Widely used in buildings, road pavings, squares, gardens, landscaping, city constructions, etc. |
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QINGDAO HF MACHINERY Co., Ltd is the professional manufacturer and exporter of technology block machines. We had exported to more than 116 countries from the Philippines, Russia, Egypt, South Africa, Ghana, Oman, India, Armenia,Israel, Chile, etc.
We have more than 50 technicians to guarantee superior installations and service after-sales to help customer install the machine and undergo proper trainingabroad.
We adopt advanced vibration technology, durable hydraulic pressure system and system advanced Siemens PLC intelligent control system. By adopting the technology and control system above, our block machine has higher production efficiency and lower failure rate. The blocks produced by our machines have higher density, higher strength, more beautiful and accurate dimensions. It is our honor to serve some large block factories and companies of construction in Mexico, Belize, Honduras, El Salvador, Panama, Colombia, Ecuador, Peru, Bolivia, etc. We have a wealth of experience in the South American market.
We warmly welcome customers from all over the world who come to visit our factory and discuss long-term cooperation.
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