Hot dip galvanized steel coils: grade: DX51D-56D+Z,coating 60-275g/m2, size ... .25-2.5mm*1000-2000mm*C, zero or regular spangle Hot dip galvanized steel coils: Steel gradeJIS G3302, SGCC, EN10142/10143, DX51D,S350GDZinc coatingZ100--Z275 ... the perfect building material in construction for making roofing tile, steel profiles for wall partition, T-bar, studs, fireproof door, air ...