Founded in 1989, Ningbo Zhenhua stamping Co., Ltd. is a proffessional enterprise which specialized in producing cold stamping production. We offer national standard products DIN seriers, nonstandard products, and OEM service . We mainly engaged in manufacturing DIN6797, DIN6798, DIN137, DIN9250,DIN6796,DIN7967, DIN432,NFE25-511,DIN2093,flange, cold stamping,stainless steel stamping,car assessories stamping, and rabidity mould stamping. Besides,we also can manufacture products to exat specifications of our clients optimized processos. Nowadays, There are more than 120 punch lathe, and 10 auto punch equipment line , 3 shear trigger machine, and 2 generator groups in our company. we have more than 100 employees, and among 11 of them with years experience of practice and theory in producing and repairing mould of cold stamping. More than 75% of our products are exported to Europe, America, Asia, Where they are being in coroporated into the manufacture of automobiles, trucks, trailers, and so on. Furthermore, we are supplying our high quality products to BEAR Group in China, VOLKSWAGEN Inc of Germany, General Motor Coroporation(GM) of USA, and Philips Inc of Holland. Over the years, our business developed rapidly and we have obtained the international quality system certification ISO9001. Based on carrying out this system,We supply high quality products and quality services with competitive price. Welcome clients at home and abroad visit us and give your precious advice. If you are intrested in any kind of our products, please do not hesitate to contact us for more information. Offer Sepcial washers : Toothed lock washers Serrated lock washers Wave spring washers Conical spring washers for bolt/nut assemblies Self-locking counter nuts External tab washers(locking tab washers) DIN6908 ANSI/ ASME B18.21.1 lock washers internal tooth external tooth