... 4.Zinc coating:60-275g/m GI/Galvanized steel coil StandardASTM A653, JIS G3302,GB/T3830-2006GradeDX51D ... :914mm,1000mm,1200mm,1219mm,1250mm,)Base metalGalvanized steel coils, aluzinc steel coilsZinc coating60-275gsmCoil ID508mm&610mmCoating thicknessTop:18 ... supply8000MT per monthMOQ1MT Specification:food industry, fluid transportation, supply and drainage water pipe, mast and fence, sewerage, ...