... are ISO9001, QS9000 and TS16949 certified, they have rubber refine machine, precision performer, vacuum vulcanizing press, ... life-time tester, ozone tester, anti-abrasive tester, aging tester, tensile tester, hardness tester, high temperature oil resistance tester.- Rubber products could be ... brake, axle seal, transmission seal, valve stem seal, rubber boot, hydraulic seal, crutch, grommet, bush and ...