... : around 1250mm Products corrugated steel roofing sheet Specification (mm)Thickness0.14 -3.0mmWidthBelow 1250mmStandardJIS G3302 / GB/T 251B / ASTM A653M / enterprise standardMaterialSGCC ( ... professional manufactor in producing the steel products, our products can be fitted for GB, ISO, GOST, ASTM, JIS, DIN, BS, NF ... , NO.208 Machang Road,Hexi District, Tianjin, China corrugated steel roofing sheet