About

About Cheng Mao Precision Sealing Co., Ltd. DESIGN – PROBLEM SHOTTING – VALIDATION – PRODUCTION TCS Oil Seal, CHENG MAO PRECISION SEALING CO., LTD. Founded in 2007 in Nantou City, Taiwan. TCS is a leading oil seal supplier/manufacturer with more than 40 years experiences in advanced oil seals, professional with high quality elements and experiences in the areas of oil seals, packing, U-cups, gaskets, customized parts. With certification of IATF16949 and AS9100D, TCS is capable of producing sealing products from design, researching, tooling development, testing, and trial mold to finish products independently. TCS serves our clients over 40 countries from OEM, ODM, aftermarket to non-standard sealing designs and seal manufacturer. We offer variety ranges of high quality sealing products to fit different applications. Our professional in-house tooling design, product development and quality control ensure the sealing performance and reduce the cost. In addition to the standard types, please feel free to contact us, we a Founded in Nantou, Taiwan, TCS is a trusted global leader in oil seal manufacturing with over 40 years of expertise in seal design, tooling development, and precision production. Backed by IATF 16949, ISO 9001, and AS9100D certifications, TCS delivers reliable, high-performance sealing solutions for diverse industries and applications worldwide.