... T:50.75.100 3:Foam Core 4:Used for steel structure workshop.warehouse ect roof panelAccording to core material kinds, the sandwich ... steel sheet, prepainted steel sheet, aluminum sheet or pressboard sheet. It is widely used as wall or roof form cold storage, industrial workshop ... , 60mm, 75mm, 80mm, 100mm, 125mm, 150mm, 175mm, 200mm4) Thickness of steel plate: 0.2mm to 0.6mm5) Length: Depending on the ...