... .customized color,shape 4.according to Rosh,CE,PAHS,WARS rubber stopper:1, Material:NBR,CR,SBR, EPDM,IIR,NR,EP,HNBR ... ,Viton etc.2, Hardness:Between 30~90 shore A3,Property:high/low temperature resistance,oil and fuel resistance,weathering resistance,Ozone ... ODM is welcomed We manufacture a wide range of rubber stoppers using optimum quality raw material that can be offered in customized ...