... to install, disassemble and move. 2. High strength and stiffness, high weight bearing3. Waterproofing,antisepsis and damp proofing, ... environmental friendly,can be recycle. Applicationswidely used as roof and wall panel in warehouses, factories, exhibition halls, prefabricated houses, ... PU rockwool color coated steel plate Sandwich Panel colourbond for roof wall fence prefab house and steel structure