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