sandwich panel, wall sandwich panel, roof sandwich panel Manufacturer & Supplier

VARIOUS TYPES OF SANDWICH PANEL

Topropan uses diversified color-coated plates and sandwich panels as the main materials for the wall enclosure system, which is elegant and grand, convenient for installation, and of high quality with reasonable price.

Acoustic System

Topropan adopts a special process to conduct secondary treatment on the interior and surface of the sandwich panel, endowing it with a unique sound absorption function while ensuring its aesthetic appearance.

Roof System

Topropan adopts diversified color-coated plates and sandwich panels as the main materials for the roofing enclosure system. The unique heat preservation and leak-proof performance make the building more energy-efficient.

Cold Storage System

Topropan cold storage sandwich panels adopt high-quality color plates as the surface material and polyurethane as the core material. The finished cold storage sandwich panels can reduce the energy consumption of industries and improve work efficiency.

Cleanroom System

Topropan cleanroom sandwich panels adopt special color plates as the surface material. The product has excellent performances in dust prevention, anti-static, antibacterial, sound insulation and fire prevention, and is applicable to various clean scenarios.

Color Steel Coil

Topropan adopts high-quality color-coated plates as the surface material, providing customers with diversified choice space and endowing buildings with a longer service life and more colors.

ABOUT US

WHAT MAKES US ATTRACT CUSTOMERS?

Yanmian New Materials (Xuzhou) Co., Ltd. (TOPROPAN) is established in Xuzhou, a national comprehensive transportation hub. TOPROPAN covering an area of 75,000㎡, a comprehensiveservice provider focusing on providing customers with metal cladding system solutions.At present, TOPROPAN can produce 2 million square meters of energy saving sandwich panelannually, and the products are sold in many countries.Looking forward to the future, TOPROPAN will continue to focus on the field of buildingenergy saving and environmental protection materials, and strive to build itself into a"Brand model of energy saving materials for construction in the whole world ".Make continuousand positive efforts for social development and human progress.

㎡

Factory Footprint

million

Annual Output

Team Members

+86-137-7170-4203

topropan.info@gmail.com

WHY CHOOSE US

We are available 24/7, E-mail or by Phone. You can also use our quick contact form to ask a question about our services and projects. TOPROPAN energy conservation has a professional technical team to provide technicalsupport covering scheme design.

Technical Support

TOPROPAN energy conservation has a professional technical team to provide technicalsupport covering scheme design, product classification, installation instructions, etc, for customers prior orduring construction process of the project, so as to provide perfect solutions for customers.

High Quality And Low-Priced Product Support

TOPROPAN has an independent production workshop equipped with multiple professional engineers, focusing on the production of various metal enclosure products, directly facing customers from the factory, truly achieving high-quality products and ultra-low prices.

360° Tracking Service

From the early technical guidance to the implementation of the project, we will followup the progress with the customers to help them in case of any doubts or concerns to ensure that ourcustomers have the best service experience from our company.

HOW CAN WE HELP?

PROVIDE YOU WITH ONE STOP SOLUTIONS

Jiangsu Peiyuan Cold Chain Logistics Park Project

Jiangsu Peiyuan Cold Chain Logistics Park is located in Xuzhou, Jiangsu Province, China. It uses 50mm thick rockwool wall sandwich panels as the main material, which greatly improves the aesthetic appearance of the exterior facade. And it uses 200mm thick PU cold storage sandwich panels, which improves the refrigeration effect in the warehouse and reduces energy consumption.

Shandong Jinlin New Materials Project

Shandong Jinlin New Materials Project is located in Jining, Shandong Province, China. It uses 75mm thick rockwool wall sandwich panels and 0.6mm metal profiled steel panel as the main materials, reducing the overall price and improving the lifespan and aesthetic appearance of the building.

Jiangsu Huajingxiang Functional Factory Project

Jiangsu Huajingxiang Functional Factory Project is located in Yancheng, Jiangsu. It uses 50mm thick rockwool sandwich panels as the exterior wall enclosure material and installing them vertically ensures the flatness and air tightness of the exterior facade. At the same time, it reduces the noise pollution of the industrial workshop and is currently the most cost-effective exterior wall material for steel structures.

FREE SAMPLES
FOR YOU TO CHOOSE

We will provide you with the most comprehensive coating and finishing options, and no one can offer more color and finishing options than TOPROPAN. If you are interested in our products, you can click the button below to apply to us.

DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!

WE ARE COMMITTED TO

PRODUCT TECHNOLOGICAL INNOVATION

Professional R & D Team

TOPROPAN has a professional and experienced R & D team, whose members include experts in multiple fields such as materials science, engineering design, and manufacturing technology.

In-depth Market Research

TOPROPAN focuses on the research and analysis of market demands and is able to capture industry trends and potential customer needs in a timely manner.

Rapid R & D Response Capacity

TOPROPAN is able to respond rapidly to market changes and special needs of customers, and provide customized R & D solutions.
Suppose a customer puts forward...

BLOGS

Contribute To The Development of Modern Agriculture And Animal Husbandry

The following are some key factors to consider when choosing suitable panels for the clean room:1. Material properties- Anti-static performance: Static electricity in the clean room may adsorb dust and particles, affecting the cleanliness of the environment. Therefore, it is important to choose pane

Aug 14, 2024

How To Customize Roof Gable Trim For Non-Standard Roof Angles?

Standard trim fails on unique roofs. Discover how custom roof gable trim for non-standard angles ensures a perfect fit and prevents water damage.

Jul 28, 2026

Contribute To The Development of Modern Agriculture And Animal Husbandry

Aug 14, 2024

How To Customize Roof Gable Trim For Non-Standard Roof Angles?

Standard trim fails on unique roofs. Discover how custom roof gable trim for non-standard angles ensures a perfect fit and prevents water damage.

Jul 28, 2026

How To Choose UV-Resistant Roof Sealant For Metal Roof Systems?

Learn how to choose the best UV-resistant roof sealant for metal roofs. Prevent leaks and corrosion with flexible, long-lasting weatherproofing.

Jul 21, 2026

What Specifications Matter Most When Buying Roof Sealant?

Discover key roof sealant specs to prevent leaks and water damage. Learn how UV resistance, adhesion, and fast curing ensure lasting protection.

Jul 16, 2026

What Specifications Matter Most When Buying Acoustic Sandwich Panels?

Reduce indoor noise by 60% with advanced acoustic sandwich panels. Explore fire-resistant, customizable soundproofing specs for your next project.

Jul 14, 2026

How To Choose Acoustic Sandwich Panels For High-Noise Factory Workshops?

Reduce noise by 60% with acoustic sandwich panels for factory workshops. Learn to choose fire-resistant, soundproof panels for safety and compliance.

Jul 08, 2026

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Rock Wool Acoustic Sandwich Panel: Key Benefits And Applications

Reduce indoor noise by 60% with TOPROPAN rock wool acoustic sandwich panels. Enjoy Class A fire resistance and superior thermal insulation.

Jul 01, 2026

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How To Maintain Industrial Sandwich Panels?

Discover essential industrial sandwich panel maintenance tips. Learn cleaning protocols, inspection timelines, and material-specific care.

May 29, 2026

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How Energy-Saving Is Photovoltaic PU Roof Sandwich Panel?

Discover how integrated PV and PU insulated roof panels combine active solar power and passive thermal efficiency to maximize commercial ROI.

May 26, 2026

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What Are The Advantages Of 3ribs Roof Sandwich Panels?

Learn how 3-rib roof sandwich panels optimize structural strength, thermal insulation, and installation speed to lower industrial roofing costs.

May 20, 2026

Are Glasswool Panels Lightweight For Building Installation?

Explore how lightweight glasswool sandwich panels optimize structural efficiency, installation speed, fire safety, and thermal performance.

May 13, 2026

What Panel Is Suitable For Cold Storage Room?

Optimize your cold storage. Learn to select the right refrigeration panels, map thickness to temperature zones, and evaluate core materials.

May 07, 2026

Key Benefits of Roof Sandwich Panels in Modern Construction

In modern construction, innovation is essential to meet the demands of sustainability, efficiency, and durability. One of the most impactful advancements in building materials has been the development of roof sandwich panels.

Feb 10, 2026

How Roof Sandwich Panels Improve Building Insulation And Durability

In modern construction, the materials used in a building’s roofing system play a crucial role in its energy efficiency, structural integrity, and long-term performance. One of the most effective solutions for achieving these objectives is the use of roof sandwich panels.

Feb 12, 2026

Roof Sandwich Panels Vs. Traditional Roofing Materials: Which Is Better?

In the world of construction, selecting the right roofing material is crucial for ensuring the long-term durability, energy efficiency, and overall performance of a building.

Feb 17, 2026

Choosing The Right Core Material for Roof Sandwich Panels

Roof sandwich panels have become a popular choice in modern construction, providing exceptional thermal insulation, durability, and energy efficiency.

Feb 19, 2026

Step-by-Step Guide To Installing Roof Sandwich Panels Effectively

When it comes to modern construction, roof sandwich panels have become a popular choice for building roofs due to their insulation properties, durability, and energy efficiency.

Feb 24, 2026

How long do sandwich panels last?

Ever wondered how long sandwich panels last? These versatile building materials are popular for their insulation and durability. However, their lifespan can vary based on several factors. In this post, you'll learn about the materials used, environmental impacts, installation practices, and maintena

Sep 24, 2025

What Are the Differences Between Wall and Roof Sandwich Panels?

Have you ever wondered what makes modern buildings so energy-efficient and quick to construct? Sandwich panels are the secret. These panels are vital in construction, offering strength and insulation. In this post, you'll learn about the differences between wall and roof sandwich panels and their un

Sep 08, 2025

Why Acoustic Sandwich Panels Are Essential for Noise Reduction in Commercial Spaces

Why Acoustic Sandwich Panels Are Essential for Noise Reduction in Commercial SpacesImagine working in a bustling office or a noisy factory. Distractions everywhere, right? Acoustic Sandwich Panels change that. These panels are key for reducing noise in commercial spaces. In this article, you'll lear

Sep 15, 2025

VARIOUS TYPES OF SANDWICH PANEL

WHAT MAKES US ATTRACT CUSTOMERS?

WHY CHOOSE US

Technical Support

High Quality And Low-Priced Product Support

360° Tracking Service

HOW CAN WE HELP?

PROVIDE YOU WITH ONE STOP SOLUTIONS

Jiangsu Peiyuan Cold Chain Logistics Park Project

Shandong Jinlin New Materials Project

Jiangsu Huajingxiang Functional Factory Project

DIGITAL SHOWROOM

PRODUCT TECHNOLOGICAL INNOVATION

BLOGS

Contribute To The Development of Modern Agriculture And Animal Husbandry

How To Customize Roof Gable Trim For Non-Standard Roof Angles?

Contribute To The Development of Modern Agriculture And Animal Husbandry

How To Customize Roof Gable Trim For Non-Standard Roof Angles?

How To Choose UV-Resistant Roof Sealant For Metal Roof Systems?

What Specifications Matter Most When Buying Roof Sealant?

What Specifications Matter Most When Buying Acoustic Sandwich Panels?

How To Choose Acoustic Sandwich Panels For High-Noise Factory Workshops?

Rock Wool Acoustic Sandwich Panel: Key Benefits And Applications

How To Maintain Industrial Sandwich Panels?

How Energy-Saving Is Photovoltaic PU Roof Sandwich Panel?

What Are The Advantages Of 3ribs Roof Sandwich Panels?

Are Glasswool Panels Lightweight For Building Installation?

What Panel Is Suitable For Cold Storage Room?

Key Benefits of Roof Sandwich Panels in Modern Construction

How Roof Sandwich Panels Improve Building Insulation And Durability

Roof Sandwich Panels Vs. Traditional Roofing Materials: Which Is Better?

Choosing The Right Core Material for Roof Sandwich Panels

Step-by-Step Guide To Installing Roof Sandwich Panels Effectively

How long do sandwich panels last?

What Are the Differences Between Wall and Roof Sandwich Panels?

Why Acoustic Sandwich Panels Are Essential for Noise Reduction in Commercial Spaces

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