O-Ring kit O-Ring kit is a kind of repairing tools which gather all the standard o-rings to one box, much convenient to carry and use. Feature of O-Ring Kit1. Appling for auto, machineries, air-conditioner, furniture and home appliance.2. NBR, HNBR, PU, SI, EPDM, VITON, CR, PTFE etc are available.3. Minimum thickness could be 0.35mm.4. The color could be chose.5. Compliance for the ISO9001-2000, TSI16949 system.6. SAE AS568, ISO3601, DIN 3771, JISB 2401 etc are all available.7. OEM/ODM or manufacturing on the drawing are offered.8. Packing on your order.