In recent years, cobalt-substitute prealloy powder for diamond tools were researched intensively.

近年，国内外开展了金刚石工具代钻粉末的研究。

This articel has detailes introductions on application of cold working technology and popularization of diamond tools in processing cathode carbon block,in order.

介绍了低碳低硅冷加工用拉丝线材的化学成分、生产工艺设计及新产品开发。