O-Rings Several material can choose on your requirement: NBR, ... : NBR, SR, CR, PTFE etc.> Many types of o-rings: O type, E type, U type, V type etc. Can ... on your requirement, black, red, yellow, brown, white, etc.> Apply for: auto, air condition, machinery, water pump, valves, furniture, toys, ... pipes, etc. We also supply the o-ring rope. Welcome to contact with us. High Quality ...