... belt ring 1.material:SBR,EPDM.CR,NR,NBR,silicone 2.type:O-ring.V-ring,X-ring,Y-ring,D ... Belt RingFeatures:1. Material: SBR,EPDM.CR,NR,NBR,silicone 2. Type: O-ring.V-ring,X-ring,Y-ring,D ... -30 ~ 200<3.0MPaNatural rubber-57 ~ 93<2.5MPaChloroprene rubber-51 ~ 121<2.5MPaEPDM-57 ~ 176<2.5MPaSilicone rubber -100 ~ 300 <3.0MPaRubber Impact ...