... vendors are ISO9001, QS9000 and TS16949 certified, they have rubber refine machine, precision performer, vacuum vulcanizing press, injection machine ... Besides, we have complete equipment for quality control, including oil seal life-time tester, ozone tester, anti-abrasive ... for brake, axle seal, transmission seal, valve stem seal, rubber boot, hydraulic seal, crutch, grommet, bush and damper, air ...