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采用无应力镶铸工艺研制出的高铬—40Cr复合锤头,质量稳定,使用安全可靠、其有效寿命是高锰钢锤头的6.3倍。
The high-chrome-40Cr composite hammer developed by using stressless insert casting process has stable quality and safe and reliable operation, and its effective life is 6.3 times that of high manganese steel hammer.