... resistance cell phone case MaterialNR,CR,NBR,SBR, SILICONE,VITON,EPDM, HNBR, BUNA, etc.Hardness30degree-90degreeMode of productionCompression and injectionProduction ... machines including 150T,200T,250T, 300T and 500TSize/colorThe size and color can be designed by the ... REACH approved, and free test slabs and hardness testers can be offered for customer's testingPackageInner plastic bag/outside ...