... (usual size:914mm,1000mm,1200mm,1219mm,1250mm,)Base metalGalvanized steel coils, aluzinc steel coilsZinc coating80-275gsmCoil ID508mm&610mmCoating thicknessTop:18-25um back: ... steel coilStructural use ,roofing,commercial use,household appliance,industry,familySPECIAL APPLICATIONof prepainted steel coilWear resistant steel,high-strength-steel plateppgi steel coil Painted Galvanized Steel Coils/ ...