Oil seal, Gasket, O-ring, U-ring, D-Ring,X-ring,T ... TS16949 certified, they have rubber refine machine, precision performer, vacuum vulcanizing press, injection machine, frozen trimming machine, automatic oil seal lip lathe, ... multi-lip seals, O ring, D rings, oil pan gasket, diaphragm for brake, axle seal, transmission seal, valve stem ... ring, MT diamond ring, Hexagon ring Oil seal ,Gasket, Diaphrgam