Yancheng Weiyi machinery factory of Jiangsu Province, China, has specialized in developing and manufacturing rubber seal moulding, which has advantaged geographical environment and convenient traffic. We have numerical control lathe, ordinary lathe, milling machine, carved machines and many other sets of machining equipment. At the same time, we have a number of outstanding technical members and moulding workers with ten years of domestic and oversea oil seal moulding experience. Our product&＃039;s design combined JIS standard and DIN standard, which made structure and function of product more reasonable and advantaged. The material of moulding adopted Cr12MOV and heat treatment adopted the integral quenching which can control the mould&＃039;s hardness within HRC50± 3 degree, it ensure that the service life of mould not less than 150000 PCS/set.</p>