Rubber Bumper 1.material:CR,SBR ,EPDM.CR,NR,NBR,silicone,viton 2.size: proposal 3.hardness:60-75A Rubber Bumpervibration nuts + rubberizedNR,SBR ... ,NBR,EPDM rubber + Zinc plated screw1) Materials: NR, CR ,SBR2 ... colors availableWe can produce according to your samples or drawings. Rubber Bumper