... steel, cu, aluminum, alloy etc.Finish: white/yellow/blue/black zinc, nickel, black oxide etc.Trading term: FOB Shanghai or CINXXX ... Service…Heat Treatment - reach the required hardnessElectroplatingwhite/yellow/blue/black zinc, nickel, black oxide etc.CleaningOrdering Rule…Minimum order quantities is ... , Province, China 226101Tel: +86-513-82363999Fax: +86-513-82281553 Yellow zinc plating turning parts