Product Feature Characteristics: high hardness, good wear resistance, no breakage, no deformation, good quality, reasonable ... /cm²min),microstructure:P+C, Times of falling balls( 18000min) Multi-ball 2: Hardness(48-60 HRC), Impact value(2 ... min),microstructure:M+C, Times of falling balls(18000min) Application cement, metallurgy, mine, construction material, water coal slurry Other Information Packaging ...