... .Competitive price. 4.JIS, DIN, ASTM, BS certificates. Crusher Hammer:High Manganse Steel Crusher HammerDesignation Weight(KG)Mechanical properties MicrostructureAk/cmHardness (HB)ZGMn ... the hammer canhas optimum performance. Compared with like products High Manganese steel crusher hammer has highercombination property, reliability, wear resistance, cost performance ...