Sandwich panel 1)anti-static 2)fireproof,keep warm 3)environmental protection 4)high-strength,fast delivery Sandwich panelcharacteristics: 1, the ... design and roll forming, and has excellent structural propertiesApplications:1) sandwich panel used in large industrial plants, warehouses, supermarkets, hospitals, stadiums ... of top/back boardColor steel sheet keep warm Sandwich Panel For Roof/wall