... 3302-1998, ASTM A653M, GB/T 2518, EN10142, Q/CHG 3-2005, EN 10142, DIN 17162GradeSPCC, DC51D+Z, DX51D+Z,DX51D+AZZinc ... , Minimal Spangle, Zero Spangle, Bright Spangle, Big SpangleCoil Chemical ProcessingChromate,un-chromate passivation and fingerprint resistant treatment.packingstandard export packing:4 ...