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用下列规格锻造研磨介质BALLSLow铬和低碳钢球提到如下:Size30mmFinishBlack-mediumMetallurgyC = 0.75Mn = 0.70的Si = 0.21Cr = 0.17Ni = 0.15Mo = 0.04Al = 0.019P = 0.003S = 0.006Hardness62 + 3-0 HRC年消费量将在3个球左右275-325 tonsNB1)样品将需要订单之前测试可以released2)正常付款条件将在30天LC 3)碳和铬组件是最关键的部件剩下的就是管理的锻造,研磨介质,球铝磨球