Founded in 1989, Ningbo Yinzhou Zhenhua Stamping Co., Ltd. is a professional manufacturer specializing in producing lock washers including toothed lock washer,serrated lock washers,internal tooth lock washers and metal stampings such as stainless stamping,metal stamp. We offer national standard products with DIN series, nonstandard products, and OEM service. We are mainly engaged in manufacturing DIN6797, DIN6798, DIN137, DIN9250, DIN6796, DIN7967, DIN432, NFE25-511 cold stamping, stainless steel stamping, car accessory stamping, and rabidity mould stamping. Besides, we also can manufacture products according to exact specifications of our clients' optimized processes.

Nowadays, there are more than 120 punch lathes, and 10...