... 3,Ozone resistance,aging resistance,UV resistance. High Temperature Rubber O Ring1, Material:NBR,CR,SBR,EPDM, ... Hardness:Between 30~90 shore A3, Property: high/low temperature resistance,oil and fuel resistance,weathering resistance,Ozone resistance ... or according to your requirements.6,Application:electronic field, industrial machine& equipment, house-hold appliance, tele-communication, automobile ...