... pitch: 76 No.of corrugations: 9~12 Corrugated steel roofing sheet1, Galvanized steel sheet thickness : 0.18mm-1.2mmAdequate ... ,warehouse,steel structure house.Corrugated Steel Roofing Sheet,light weight,abundant colors,easy installation,water proof,long lift-span,etc. ... Corrugated Steel Roofing Sheet (use for Roof or ...