Originally based on technical joint venture with Japanese oil seal company, we continue to research new compounds for all applications. Through life testing equipment, we verify the actual material under specific conditions and the testing data can be apply to upgrade our other products. In view of international developing, we introduce the well-known quality assurance system ISO9002 into our company to control every stage of the process. This is to achieve consistent and reliable services. TTO has been enjoying a leading reputation. In gathering our 40 years experience we clearly understand the characteristics of seal's usage and manufacturing. From designing (Auto CAD), molding, metal case treatment (computer control), spring, vulcanization (vacuum forming) to package, all process are manufactured by ourselves. In order to stay ahead of our competition, we are developing more and more automatic equipment to provide efficient services. Customers will get the lowest cost for the highest quality products. Our goal is to win customer's trust as long term supplier for your oil seal requirements.