Zhoushan Keyu Seal Co.,Ltd. is specialized in producing Oil Seal for ship, automobile and machine. The dimension rangs 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 characteristics of insulation, corrosion resistance anti-aging, using in oxidizing agent for long term. And we have gained domestic patent technology. Our PTFE Oil Seals are of very good quality, we have already built good relations with many ship building and reparing company.