low chrome alloy casting steel balla)Specification: 25-130mmb)Hardness: HRC 45-52c) Characteristics:1) High hardness,2) Good wear-resistance,3) Low breakage,4) Low wear rated) Chemical compositionC:2.2-3.6, Si: ≤1.5, Mn:0.5-1.5, Cr:1.0-3.0, Mo: ≤1.0...
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