We are manufacturer specializing in producing cold stamping, washers,DIN-seriers:DIN6798/6797/137/7967/6796/9250/432,NFT25-511 and other nonstandard products,justlike rectangle and triangle flange and other stamping.Our products with good quality and competitive price. Welcome to visit our website:http://www.zjzhenhua.com If you are interested in our products,please feel free contact me and know more ***ais about us....