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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: DUOWEI
  • Model Number: DWWP
  • Panel Material: Metal
  • Type: Rock Wool Sandwich Panels
  • Material: Color Steel Sheet+rock wool
  • Color: RAL Color
  • Thickness: 50-200mm
  • Certificate: ISO9001:2000/14001/CE/FM
  • Usage: Construction Insulation
  • Length: Customer's Choice
  • Features: Anti-earthquake

Packaging & Delivery

Packaging Details nude,bundle,shelf,container
Delivery Time 3-30 days after prepayment
Company Information


We are Duowei Union Group, one of the leading PEB manufactures in China. With more than 30 years of steel structure fabrication and 7 production bases, we are proud of the quality reputation we've earned as the steel and metallic panels producer of choice for international projects like office, hotel, warehouse, factory, hangar, gymnasium, high rise buildings and etc.


Duowei Union Group has been awarded with many high-level certificates such as State Qualification Class-A for Construction Engineering Design, Qualification Class A for Steel Structure Design, Qualification for Professional Manufacturing of Steel Structure, Quality Management System ISO 9001:2008, Environmental Management System GB/T 24001-2004/ISO14001:2004, Occupational Health and Safety Management System GB/T 28001-2011/OHSAS 18001:2007, FM Approval and GOST Certificate.


Product Description


rock wool sandwich panel

Light weight

High strength

Fast and easy installation

Waterproof and insulation great


Steel sheet

thickness :0.4-0.8mm

Color steel sheet:seal blue,white grey,red,silver gray and so on.

Insulation material:50-150mm thick polyurethane (PU), density:37-48kg/cbm



Effective width :1000mm




Technical parameters:


Heat conductivity coefficient: ≤0.020W/m.k

Heat conductivity coefficient:≤3.34Ng/Pa.m.s

Water absorption:≤0.5g/100cm3

Closed-cell rate:≥97%

Compressive strength: ≥220Kpa

Flexural bearing capacity: ≥2450

Continuous working temp:-190-150°C

Oxygen index: ≥28

Combustion level: A



Packaging & Shipping


In general, for steel structure , we use the steel frame packing to keep goods not to be broken . For sandwich panel and color steel sheet, we use the factory packing which is suited to transport. if clients require , also can use the steel frame packing or according to their requirements.




Our Services


1. Professional design and engineering team: Full solution for site camp design. We could make the design for whole camp as per your requirement.

2. Procurement and Manufacture for all material for prefabricated building. We have a professional procurement team to make sure all the materials are with good quality. And our factory operation under ISO standard, to make sure the fabrication works with high technology.

3. Site management & Installation supervision, We could send our engineers to help for the installation supervision, you just need to prepare a team which know normal construction works will be OK.


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China (Mainland) | Manufacturer, Trading Company
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