With over 30 years experience in manufacturing all kinds of stamping parts, Our mainly products is on the following: 1: Standard lock washers : DIN6798A&J&V , DIN6797A&J, DIN137A&B, DIN9250S&VS, NFE25-511 S&M&L,DIN2093, Screw Cup washers(Finish washer),Contact washer 2: Custmoize Stamping parts according to customize drawing or samples 3: Material : Stainless steel A2(304),A4(316),301SS,430SS,301SS,Spring Steel 65mn,Brass, Phosphor Bronze, Aluminum,Carbon steel ...... 4:Finish: Zinc plated, Mechanical Zinc plating, Darcomet, Black oxide, Phosphating,E-coating,Tin plating ..... 5：Package: Export carton+ pallet