... is ok to us.Finish:Zinc/Nickel/Chrome plating,Powder coating,Anodize,etc.It is of great importance to product' ... threading,welding, tapping, rivetingMaterialAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc etc.FinishPolishing; Anodize; SandingPowder coating; Vacuum Plating; Nickel, Zinc, ... and other countries and regions.InspectionIQC, IPQC,FQC,QA powder coating metal stamping part