Roof Corrugated steel sheet 1.Excellent waterproof performance. 2.Handsome appearance. 3.Light in weight, heat insulat. Roof Corrugated steel sheet:thickness0.23~0.6(mm)Effective width760,820,840(mm)--for roof900,820,840(mm)--for wallLengthaccording to customer's requestCompression strengthstrongConventional colorOcean blue, whitelifetime8 yearsCharacterLight in weight, heat insulation, water ...