rubber impact ring 1.material:SBR,EPDM.CR,NR,NBR, ... ring,Y-ring,D-ring,T-ring 3.sample available Rubber Impact ringFeatures:1. Material: SBR,EPDM.CR,NR,NBR, ... 121<2.5MPaEPDM-57 ~ 176<2.5MPaSilicone rubber -100 ~ 300 <3.0MPaRubber Impact Ring Specification: DescriptionD1D2H1H2193-260-401892603040159-215-401562153040133-215 ... .6253563.5-89-355989253560-89-355789253548-89-2848892028 rubber impact ring