Natural rubber o ring 1.Material NR 2.Good tensility,wearing 3.ROHS,ISO9001,14001 4.Type:O ring,X ring,V ring,U ring,etc Production Description Rubber o ring 1.Material:natural rubber 2. Type:O ring,X ring,V ring,U ring,etc 3. Prolong machine life, reduce maintenance costs 4. Used for sealing water, oil, air 5.Resisting oil, high temperature and pressure, aging, special chemical medium. Material ...