... , Z20, Z22, Z25, Z28, comply with JIS G3302, ASTM A653M, EN10327, stable quanlity hot-dip galvanized steel coil, sheet, strip--Base steel thickness ... , minimized spangle--Surface treatment: chomating treatment, oiled coated--Coil inside diameter 508mm, coil outside diameter no more than 2000mm--Package, fixed by ... us email or contact Peter Tan, 0086 13724926360 hot dipped galvanized steel coil