... A.SIZE:20-150MM B.HARDNESS:55-65 C.APPLIED FIELD: MINES, CEMENT PLANTS, POWER STATIONS ... MINES, CEMENT PLANTS, POWER STATIONS,CHEMICAL INDUSTRIE D.CHEMICALELEMENTS:C:0.7-0.9,SI:0.45-0 ... HARDNESS,NO BREAKAGES,GOOD WEAR RESISTANCE,EVEN WEARING. F.APPLIED FIELD: MINES, CEMENT PLANTS, POWER STATIONS, ... $700-1000QINGDAODIA110-140MMHRC55-60HRC52-58FOB$700-1000QINGDAO C.CHEMICALELEMENTS:C:0.72-0.82,SI:0.17 ...