Welcome to DTR DTR is based on TRI (Tokai Rubber Industries).Ltd. established in 1929 in Japan and is known as the leading company in the automotive rubber products field. DTR manufactures and sells a wide variety of anti-vibration rubber products such as hydraulic and conventional engine mounts, body mounts, engine drivelines, exhaust isolation mountings and body isolation products. DTR also specializes in a complete line of automotive hose products, including rubber and plastic high pressure fuel hoses along with vapor hoses. We also manufacture urethane sound reduction products.