... 3.hardness: 40-75A 4.tensile strenght:5-20MPA rubber shock block Features: 1) Material: NR,NBR,CR,SR,EPDM,SBR,IIR ... stop, fender, rubber sheett, conveyor belt, rubber roller, rubber products with anticorrosive liner, special rubber products, rubber pad of sleeper for railway, composite base plate, etc ...