rubber ring 1.material:SBR,EPDM.CR,NR,NBR,silicone 2.type:O-ring.V-ring,X-ring,Y-ring,D-ring,T-ring 3.sample available Industrial Rubber RingFeatures:1 ... . Material: SBR,EPDM.CR,NR,NBR,silicone 2. Type: O-ring.V-ring,X-ring,Y-ring,D-ring,T-ring 3 ...