... &Wallsandwich panel or steel plateSandwich panel materialsEPS, polyurethane, rock wool, glass woolWindowPVC or aluminum alloy doorDoorsliding or rolling door2 ... Structure,Space Frame,Prefabricated House,Steel TowerProduction Lines9 production lines of light steel,heavy steel,space frame and ... tube truss. 5 production lines of color steel plate,curtain wall and other ...