O-Rings Several material can choose on your requirement: NBR, SR, CR, PTFE etc. Welcome to www.jbdrubber.comPrime Feature > Several material can choose on your requirement: NBR, SR, CR, PTFE etc.> Many types of o-rings: O type, E type, U type, V type etc. Can be made on your requirement> Any sizes on your requirement> Any color on your requirement, black, red, yellow, brown, white, etc.> Apply ...