In the construction materials industry, pre-painted steel sheets are highly favored for their excellent performance and wide range of applications. Wiskind Architectural Steel, as a leading manufacturer in this field, specializes in developing various high-quality profiled steel sheets to meet diverse engineering needs.

 

Wiskind's concealed fastener wall panel series, such as M3 and K3, feature hidden interlocking structures that not only provide seamless wall connections and aesthetic appeal but also reduce the impact of thermal expansion and contraction on fastening components, enhancing structural stability and weather resistance. These panels are suitable for various climatic conditions.

Other pre-painted steel sheet products from Wiskind, including VP3, WP3, and 780S, boast unique cross-sectional designs that create diverse shadow effects under changing light, adding artistic flair to buildings. They combine aesthetics, waterproofing, and wind resistance, catering to the personalized needs of different architectural projects, whether commercial buildings or coastal constructions.

For interior applications, Wiskind's pre-painted steel sheets serve as liner panels that conceal insulation materials and purlins, enhancing indoor aesthetics. Perforated liner panels can also function as acoustic panels, effectively absorbing noise in environments with high acoustic requirements, such as schools and theaters, creating quieter spaces.

As a professional manufacturer of pre-painted steel sheets, Wiskind offers a diverse range of products with exceptional performance, widely used in industrial, commercial, and warehousing buildings. For related needs, please contact us. Wiskind is committed to providing high-quality services and collaborating to create outstanding architectural solutions.

As a kind of modern building material, rock wool sandwich board has been widely used in the construction field for its excellent performance. As one of the key characteristics, its fire resistance is very important to ensure the safety of buildings. This article will discuss the fire resistance limit of rock wool sandwich board and related knowledge to help everyone have a more comprehensive understanding.

 

Fire resistance limit refers to the limit that the material can withstand external fire damage and maintain its original performance. For fireproof building materials such as rock wool sandwich composite panels, fire resistance is not only an indicator, but also an important basis for evaluating its applicability and safety. Its fire resistance limit according to the density, thickness and other factors, generally in 1-3 hours or so, in general, the thicker the plate, the higher the density of rock wool, the better its fire resistance.

 

As the industry's leading supplier of metal enclosure products, the rock wool sandwich panels produced by WISKIND, such as: COLORPOD ®, COLORGOLD ®, COLORGEM ®, COLORCURTAIN ®, structural rock wool sandwich panels and other products, are made of domestic high-quality color coated panels and high-density hydrophobic rock wool, with excellent fire resistance.

 

Under the fire resistance limit of materials specified in GB/T 9978 standard, the fire resistance limit of Master Rockwool Sandwich Panel can reach 3 hours, which is at the leading level in the industry. It can effectively prevent the spread of fire in the event of a fire, and will not release toxic gases during the fire, creating more escape time and protecting the safety of the building structure.

 

In the field of construction, FM APPROVED roof panels are synonymous with quality and safety. As an industry benchmark certification, FM APPROVED places strict requirements on the wind resistance, waterproof and durability of mater ials, providing long-term protection for construction projects. WISKIND, which has been deeply engaged in metal enclosure systems for nearly half a century, has launched a number of FM APPROVED roof systems with innovative technology and mature processes to help customers build safe, energy-saving and high-performance buildings.

 

WISKIND's SR6® roof system is a star product that has obtained FM APPROVED. It adopts an assembled design, efficient and accurate installation, 360-degree all-round protection, excellent wind resistance, and is suitable for a variety of waterproof levels. In addition, the system has passed ASTM watertight and airtight tests and static/dynamic wind load tests, and has been successfully applied to large projects such as Desay Battery and Yiwei Lithium Energy, winning high market recognition.

 

Special roof panel: Designed specifically for the SR6® system, it is also FM-certified, has strong bearing capacity and anti-trampling, and has both sound absorption and sound insulation functions after perforation, which is suitable for a variety of roofing needs.

 

Single-layer roof bottom panel: It also passes the roof FM APPROVED standard and can be combined with insulation materials and waterproof membranes to form an efficient wind-resistant and waterproof system. Its excellent cross-sectional characteristics can optimize the purlin spacing design and reduce the overall cost.

 

As an industry-leading metal enclosure system solution provider, WISKIND has always taken FM APPROVED roof panel products as its core and practiced the green and low-carbon concept. In the future, it will continue to innovate and provide customers with roof solutions that integrate beauty, functionality and sustainability, and promote the development of steel structure projects towards intelligence and environmental protection. Choosing WISKIND FM APPROVED roof panels is not only a choice of quality assurance, but also an injection of long-term value and safety genes into the building!

 

When it comes to improving sound in a room, one common question is: what’s the difference between soundproof panels and acoustic panels? Although they may seem similar, these two types of panels serve very different purposes — and choosing the right one depends on your goals.

At Guangdong Liyin Acoustics Technology Co., Ltd.  (leeyin) , we specialize in wood slat acoustic panels and are one of China’s leading manufacturers and exporters in this field. In this article, we break down the core differences between soundproof panels and acoustic panels to help you make the right decision for your project.

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🔊 Soundproof Panels: Keep Noise In or Out

Soundproofing panels are designed to block sound transmission between spaces. Their primary function is to prevent external noise from entering a room or keep internal noise from escaping.

Features:

• Made from dense, heavy materials like mass-loaded vinyl, gypsum, or multi-layer composites.

• Ideal for walls, floors, ceilings, and even doors.

• Used in recording studios, home theaters, hotel rooms, and shared office spaces.

Purpose:

• Isolate sound.

• Reduce sound transfer through building structures.

• Prevent disturbance between neighboring rooms.

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🎧 Acoustic Panels: Improve Sound Within the Room

Acoustic panels, such as our wood slat PET acoustic panels, are designed to absorb sound inside a room to reduce echo, reverberation, and background noise.

Features:

• Made with sound-absorbing materials like PET felt, fabric-wrapped fiberglass, or perforated wood.

• Available in decorative designs such as wooden slat panels for a modern interior aesthetic.

• Installed on walls and ceilings to enhance sound quality.

Purpose:

• Improve audio clarity and speech intelligibility.

• Eliminate echo and flutter.

• Create comfortable acoustics in offices, conference rooms, restaurants, homes, and more.

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Key Differences at a Glance:

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Why Choose Liyin Acoustics Panels?

At Guangdong Liyin Acoustics Technology Co., Ltd., we focus on producing high-performance wood slat acoustic panels backed with eco-friendly PET felt. Our panels are trusted by architects, designers, and contractors globally thanks to:

✅ 20,000㎡ modern production facility
✅ International-standard quality control
✅ E0 MDF + PET materials, FSC certified
✅ Stylish slat designs with proven acoustic performance
✅ Global exports across Europe, North America, and Southeast Asia
✅ OEM/ODM services for custom finishes and specifications

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Final Thoughts

If you're looking to block noise from entering or leaving a space, soundproof panels are the answer. But if your goal is to improve the sound environment inside a room, then acoustic panels — like the ones we manufacture at Liyin Acoustics — are exactly what you need.

 

Looking for a professional acoustic solution that combines functionality, aesthetics, and sustainability? Contact us today and discover how Liyin Acoustics can support your next project. export@gzliyin.com

 

On march 26th, all employees visit Yellow Mountain which is the most beautiful mountain in China, below is a short introduction of this mountain, we welcome all our firends and clients visit this mountain together.

The Yellow Mountain, located in the southern part of Anhui Province, is China’s most celebrated mountain for all its grandeur and beauty. In 1990 the Yellow Mountain was declared a World Natural and Cultural Heritage site by UNESCO Heritage Committee. The Yellow Mountain is a marvel: within an area of 154 square kilometers there is a crowd of peaks, many of which have names indicating the shapes they resemble. Lotus, Brightness Apex and Celestial Capital are the three major ones, all rising above 1,800 meters. When it is cloudy the pinnacles loom in mists as if they were illusionary, while the sun is shinning they unfold in all their majesty and splendour. The Yellow Mountain changes its color and appearance with the alternation of seasons. In spring blooming flowers decorate the slopes in a riot of color; in summer you see verdured peaks rising one upon another and hear springs gurgling merrily. Autumn dresses the peaks in red and purple as maples are all blazing-red; winter turns them into a world of frost and ice with silver boughs and rocks everywhere. So from ancient times the peaks have been frequented by tourists seeking their mystery and admiring scenery. They come to the conclusion that the fantastic pines, the grotesque rocks, the sea of clouds and the hot springs are the four major attractions of the Yellow Mountain. Owing to the peculiar terrain,the climate of the Yellow Mountain is marked by a vertical change, and the vertical distribution of vegetation is also distinctive: plants on the summit,on the middle levels and at the foot belong to the frigid, temperate and subtropical zones respectively. There are more 1,500 species of plants, of which trees comprise one third. The Yellow Mountain also provides the natural habitat for a wide variety of fauna. The temperature in the Yellow Mountain is agreeable all the year round. As clouds often shut out the sun, hot weather never stays long, and this makes the Yellow Mountain an ideal summer resort. Though looking young and fresh, the Yellow Mountain has a long history to which ancient books, poems, and paintings as well as carved inscriptions all bear witness.Li Bai was not the only poet who sang in its praise, Tang poets Jia Dao and Du Xunhe also came here and wrote poems. In the succeeding dynasties people kept coming and giving expression to their admiration in poetry. Xu Xiake, the great geographer and traveler of Ming Dynasty, devoted two of his travel notes to the Yellow Mountain.Inscriptions of past generations meet one’s eyes here and there: “Clouds in a myriad of forms”, “Peaks piercing the sky”, “A cool world”, “Fantastic and beautiful”, “Scenery of exceptional charm”, to mention just a few of them. Such poetic phrases in handsome calligraphy are not only decorative, but also part of fascinating scene.

Huanrui has professional team for researching and development of the key technologies, we work with the top two experts from Chinese government heat trace project. We are committed to research, production, sales, design, installation and after-sales.

https://www.heatcablemat.com/

https://www.chinaheatingcable.com/

Anhui Huanrui Heating Manufacturing Co.,Ltd is a famous Chinese manufacturer and national high-tech enterprise, which takes the job of research and development, production, sale and service of self regulating heating cable, constant wattage heating cable, electric under floor heating products. Company located in city of National Science and Technology Innovatation Pilot --- Hefei. It was found in 2004, the registered fund is 20.8 million RMB, has 100 employees. Company owns the first building area of 8476 square meters, and ten automatic production lines, the annual output of self regulating heating cable is 20 million meters. In 2015, Anhui Huanrui Heating manufacturing Co.,Ltd is planning to invest 120 million RMB to the second factory project, which covers an area of 16500 square meters. Then Anhui Huanrui Heating Manufacturing Co.,Ltd will be the largest manufacturer of self regulating heating cable in China.

AnhuiHuanrui Heating Manufacturing Co.,Ltd has 19 patented technology, more than 90 industrial certificates and honors from government. In 2006, Anhui Huanrui Heating Manufacturing Co.,Ltd became the member of floor heating association of Hebei Province. In 2007, Anhui Huanrui Heating Manufacturing Co.,Ltd registered the brand "JIUZI", which shows high quality and good faith of our enterprise.

In 2008, all the products of Anhui Huanrui Heating Manufacturing Co.,Ltd got the national explosion-proof certificates.

In 2010, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificate of "Famous Brand of China"

In 2011, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificate of ISO 9001:2008 quality management system.

In 2013, Anhui Huanrui Heating Manufacturing Co.,Ltd became the main compile organization for national standards.

In 2014, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificates of "National High and New Technology Enterprise", "Famous Brand of Anhui".

With the advanced production equipment and test devices of the world, and the continuous efforts of research and development team, Anhui Huanrui Heating Manufacturing Co.,Ltd works with the world top 500 enterprises, serves more than 20000 customers from all over the word. Our products widely used in oilfield, electric power, steel, chemical, coal and gas, refrigeration, food, construction, fire fighting, solar energy, electrothermal heating, geothermal cultivation, carriages, offshore oil platform industries and etc.

In 2007, Anhui Huanrui Heating Manufacturing Co.,Ltd became the supplier for the world top 500 ABB group.

In 2008, Anhui Huanrui Heating Manufacturing Co.,Ltd provided the self regulating heating cable for 2008 Olympic games.

Since 2009, Anhui Huanrui Heating Manufacturing Co.,Ltd became the long-term and fixed supplier for Dazing oilfield, Hubei oilfield, Songhua oilfield.

Since 2011, Anhui Huanrui Heating Manufacturing Co.,Ltd exported to Russia, UK, Australia, Hungary and etc.

In 2014, under the guidance of top two experts, Anhui Huanrui Heating Manufacturing Co.,Ltd produce a exclusive self regulating heating cable, using the latest advanced machine and highest technology, create a exclusive PTC heat matrix. Meanwhile obtain a patent of low resistance transition layer, PTC semi-conductive, Modified inner insulation layer process in one step, protect the PTC. No spacing between layer, so no impurity will hurt the PTC. It ensures that the cable will have a long work time, working at low starting current.

Until now everyone in company pay great effort, try to bring the high technology, energy saving and comfortable products to everyone. We believe that our company Anhui Huanrui Heating Manufacturing Co.,Ltd will be the great manufacturer in the future. Welcome customers from all over the world come to us and be familiar with products of Huanrui.

Anhui Huanrui Heating Manufacturing Company will attend the 124th Canton Fair, Phase One, 15-19th October 2018. Address of exhibition hall: No.380, Yuejiang Zhong Road, Guangzhou, China. Our booth number: 11.3K28. Welcome to visit! We will be glad to show you our products: self-regulating heating cable, constant wattage heating cable, electric under floor heating system, water pipe freeze protection system, process temperature maintenance system, roof & gutter de-icing system, snow melting system etc.

Canton Fair(China Import and Export Fair) is the largest trade fair with the largest scale, the most complete exhibit variety, the broadest distribution of overseas buyers and the greatest business turnover held in Guangzhou(Canton) China. Nearly 20,000 venders, about 200,000 buyers will attend the fair at China Import and Export Complex twice a year.

Fair is divided into three phases. Phase 1 focuses on electrical and electronic products, building Materials, industrial products. Phase 2 focuses on such labour-intensive products as groceries, ornaments, gifts, and furniture. Phase 3 focuses on clothing, footwear, bags... and food medicine that such as use on people.

In the cold winter, the fire protection pipes in shopping malls face severe tests. Low temperature will not only affect the service life of the pipes, but also cause the water in the pipes to freeze, thus affecting the normal operation of the fire protection system. In order to ensure the fire safety of the shopping mall, the electric heating system can be used to prevent freezing and heat preservation of the fire protection pipes in the shopping mall.

1. Necessity of electric heating system

Prevent pipe freezing: In the severe winter, the fire protection pipes in the shopping mall are easily affected by low temperature and freeze. Once the pipe freezes, it will hinder the water flow, affect the normal water supply of the fire protection system, and bring hidden dangers to the fire safety of the shopping mall.

Improve the service life of the pipe: In a low temperature environment, the pipe material is easily damaged, leading to problems such as pipe aging and corrosion. By using an electric heating system, the pipe temperature can be maintained, the aging speed of the pipe material can be slowed down, and the service life of the pipe can be extended.

2. Features of electric heating system

Prevent pipe freezing: In the severe winter, the electric heating system provides a continuous and stable heating effect for the fire protection pipe, ensuring that the temperature in the pipe is always maintained within the set range, preventing the occurrence of pipe freezing.

Ensure the normal operation of the fire protection system: The electric heat tracing system can ensure the normal operation of the mall's fire protection system in winter, providing a strong guarantee for the mall's fire safety. Improve the service life of the pipeline: By using the electric heat tracing system, the service life of the mall's fire protection pipeline has been extended, reducing the maintenance and replacement costs caused by pipeline aging, corrosion and other problems.

Anhui Huanrui

Snow Melting System is suitable for heating driveways, preventing ice and snow accumulation, keeping driveways or sidewalks clean and safe. Keep driveways and sidewalks free of ice.



In winter, ice and snow can accumulate on concrete and asphalt pavement, posing a slip hazard to people and vehicles.



Heating driveways or sidewalks can effectively eliminate snow and ice. This approach means that heated pavement no longer requires rock salt or other hazardous de-icing agents.



Anhui Huanrui Snow Melting System can be installed under concrete and asphalt driveways and is able to withstand any challenges brought by winter weather. The system requires no maintenance after installation



Comprehensive Driveway Snow Melting Electric Heating System



The system provides a comprehensive solution for driveway snow and ice melting, including:



Heated lane lines



Energy-efficient control unit and sensors



Other related components