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 ... type, E type, U type, V type etc. Can be made on your requirement> Any sizes on your requirement ... furniture, toys, pipes, etc. We also supply the o-ring rope. Welcome to contact with us. High Quality O-Ring