... light steel structure house enveloped by every kinds of sandwich panel. sandwich panel can be used as wall, roof and door. 1 ... .3. convenient for installation. Sandwich panel: each side of the panel is high qualified steel sheet, and Fiber glass or EPS or PU ... ,200,other options are available under request3. Width (mm): flat panel:950,1000,1150,1200 Corrugated: 750,820,840,950,10004 ...