... , SGCH, DX51D 2) thicknes:0.14-0.6mm*750-1000mm 3)ISO9001 QC, factory audit zinc steel/galvanized g60 coils/galvanized metal tile ... sheets GradeSGCC, SGCH, DX51D+ZStandardJIS, ASTM, GB, DINZinc CoatingNon-alloyed galvanized(GI)Zinc thickness60- ... . Qualification: ISO9001-2000 Certified, factory audit available galvanized steel coil