USAM ENGINEERING have been manufacturing Valve Rotator which is a main product of Cylinder head parts for ship and plant’s auxiliary engine, Chain Guide Bar for main engine, and precision parts as a manufacturer. We are a supplier providing engine spares to ship’s engine makers in Korea such as HHI, STX Shipbuilding, Doosan engine. Since its foundation in 1999, we have gained competitiveness of manufacturing ship’s engine spares through accumulated experience, continuous research & development, localization of engine spares. We will continue our utmost efforts to be the trustworthy company in regards to the quality, price and lead time through constant technical development aiming for customer’s satisfaction.