K.O.S (Korea Oil Seal) is a manufacturer where is located in Republic of Korea . Since 1997, we manufacture and export automobile parts and Industrial components to overseas & domestic market. We have to try to do our best to improve products' quality, Based on skilled technical know-how, and the latest equipments to pursue excellence in high customer satisfaction. The best value of business for K.O.S is the trust between customer and supplier to grow into a world-class cooperation. Under the motto of trust in customer relationship, we promise to do our best to fit customers' needs and wants. K.O.S 's main producing items are Oil Seal, Valve Stem Seal, 0-Ring, Hydraulic Cylinder Parts, Engine Gasket, And Industrial Rubber Parts with the best material and high quality in Korean, Japanese, and European.