... coating: 60-275g/m2 thincness: 0.18-15mm steel grade: JIS EN galvanized steel coil 1.materail:SGCC 2.thickness:0.23mm --2 ... & minimum spangle,oiled & dry,chromated,non-skin pass,skin pass6. Steel Grade: SGCC, SGCD, CS,FS,SS,DX51D+Z DX52D+Z ... perfect building material in construction for making roofing tile, steel profiles for wall partition, T-bar, studs, fireproof door, air conditioning duct ...