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研制了锰铬铜白口铸铁铰刀,其寿命比普通白口铸铁高80％以上,另外还研究了它的耐磨性和韧性.
Developed a manganese-manganese-copper-white cast iron reamer, the life expectancy of 80% higher than ordinary white cast iron, also studied its wear resistance and toughness.