Steel Coil & StripChina 0.5mm 1.5mm Thick Width 30mm Dx51d Z275 Z350 Z600 ASTM A653 Csb Aluzinc Density Galvanized Steel Coil for Roofing Sheet, Find details about China Building Material, Steel from 0.5mm 1.5mm Thick Width 30mm Dx51d Z275 Z350 Z600 ASTM A653 Csb Aluzinc Density Galvanized Steel Coil for Roofing Sheet