... 1. Quick shipment. 2. Large stock quantity. 3. Heat-proof graphite o-ring. 4. AS568, BS, JIS, metric sizes all available ... , FPM, etc.2. Characteristics: good physical and chemical properties graphite o-ring. 3. Hardness: 30~90 shore A or IRHD ... FDA, NSF, KTW, WRAS, LFGB, etc. 8. Applications: automobile graphite o-ring, electrical appliance, mechanical, industrial, construction, household, medical and ...