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介绍了KPW50VMR轧管机芯棒用LD钢特性和LD钢芯捧的热处理工艺。通过与德国的A8、MAR350钢芯棒使用寿命对比,LD钢芯棒使用寿命长,制造成本低。
The KPW50VMR rolling mandrel with LD steel characteristics and LD steel core holding the heat treatment process. Compared with the life of German A8, MAR350 steel mandrel, LD steel mandrel long service life, low manufacturing costs.