Rubber with metal screw Materials: different kinds of rubber & plastic, such as SILICON, NBR,SBR,NR,CR,EPDM,FKM Rubber with metal screwsFeatures:1) ... Materials: different kinds of rubber & plastic, such as SILICON, ... NBR,SBR,NR,CR,EPDM,FKM2) Applications: rubber parts, industrial parts, household parts, motorcycle parts, electronics ...