Zhoushan Keyu Seal CO.,LTD. is specialized in producing Oil Seal for ship, automobile and machine. The dimension ranges from 25*40*7mm to 150*180*16mm. And special dimension can be manufactured according to your requirements. The oil seel is made of PTFE which is very good material for oil seel. And we already gained patent technology. Our PTFE Oil Seals are of very good quality, we have already build good relations with losts of ship building and reparing company. Weclome to our company to take a visit. You will find our products are competitive.