Safety Lock Washer DIN9250 Black Factory over 35 years experience in producting stamping Parts Material: Stainless steel(A2,A4..), carbon steel, Spring steel, 65Mn,Brass,Aluminum ..... Surface:Zinc plating,black,quenching,Darcomet, Mechnical Zinc plating ....... Package: Export carton+ pallet Ningbo Zhenhua stamping Co., Ltd. is a proffessional enterprise which specialized in producing cold stamping production over 35years. We offer national standard products DIN seriers, customize products, and OEM service . We mainly engaged in manufacturing DIN6797, DIN6798, DIN137, DIN9250,DIN6796,DIN7967, DIN432,NFE25-511, cold stamping,stainless steel stamping,car assessories stamping, and rabidity mould stamping. Besides,we also can manufacture metal stamping products to exat specifications of our clients. Please contact me for a quote.