The predecessor of Zhejiang Tongchi Oil Seals Technology Corporation Ltd is founded in 1997, specialized in manufacturing and sales of Oil Seals, Gasket and Engine gasket kits for Premium Vehicle. Tongchi is well recognized and gradually developed into popular brand in automotive sealing product business over last 19 years.
Supported by Government and National Project, Tongchi developed into a high-tech sealing products supplier with self-owned IP, National production License and TS16949 Certification. Currently, Tongchi has the whole process capability which integrates R&D, Design, Molding, Rubber Recipe, Rubber Mixing, Pre-forming, Surface treatment, Vulcanizing, Trimming, Inspection, Packaging, and Shipping of Sealing Products.
The primary high-end product type include: Flange Seals, PTFE/ACM Oil Seals, FPM/ACM Dual Material Oil Seals, Valve Stem Seals, Metal Cylinder Head Gasket, Oil Pan Gasket, Manifold Gasket, Special Sealing product, etc; Varity of rubbers and other materials are available including PTFE、HNBR、FPM、ACM、AEM、MVQ、NBR、EPDM, etc. Our products are manufactured strictly following original material, structure and dimension.