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Steel Buildings High Density Mineral Wool Wall Panels Rock Wool Sandwich Panel Interior External Wall Warehouse Workshop Storage Food Factory
Sandwich panel is a product used to clad the walls and roofs of buildings. Each panel comprises a core of Thermo insulating material, and skin on both sides with sheet metal. Sandwich panels are not structural materials but curtain materials.
| Specifications | |
| Metal steel sheet thickness | 0.2~0.8mm |
| Panel thickness ranges | 50mm~200mm |
| Panel width ranges | 500mm~1150mm |
| Panel length | Customized |
| Surface | Prepainted |
| EPS/PU/Rock wool Thickness | 50mm 75mm 100mm 150mm 200mm |
| Water absorption rate | <0.018 |
| Fireproof Grade | B1 |
| Temperature range | -40~200 |
| Color | Customized |


Sandwich panels are incredibly versatile and find applications across multiple industries. Let’s explore some of the most common uses:
| Wall Panels | Roofing Panels |
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| Suspended ceiling panels | Cold Storage Panels |
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A complete set of PU Rock Wool sandwich panel continuous production line, featuring the world's advanced polyurethane core production process and seven-component on-site foaming technology, ensuring stable product performance. The ultra-long dual-track guarantees the flatness of the product's surface.

Lanjing Group, Weifang City of Shandong Province, north of China, with a factory area of more than 12 hectares (120.000SOM ), is a comprehensive enterprise integrating steel structure design, manufacturing, and installation. With over 20 years of industry experience, the company has always adhered to the philosophy of "quality-oriented, customer first." It is committed to providing customers with efficient, safe and environmentally friendly steel structure solutions. With strong technical expertise and extensive project experience, Lanjing Group has become one of the leading enterprises in the steel structure industry in china.Q: Is your company a factory or trading company?
A: We are manufacturer with foreign trade department, so you can get competitive price as well as professional service. And you are always welcomed to visit our factory at any time.
Q: Do you provide installation instructions and on-site installation services?
A:Every project will provide the installation instructions, and if you need, we also would like to send our engineer to the local construction site for helping the installation work.
Q:Can you produce according to my requirement?
A:Yes, all the design, size, printing and packaging can be done according to customer's request. About any further detail, please feel free to contact us.
Q:Can I get samples for inspection?
A:We will provide free samples to you before order confirmation.
| Main Products Steel structure Building Prefabricated container house Metal Sandwich Panels | ![]() |