并提出了生产高强度易切削钢的工艺方法。

Afterwards, a steelmaking procedure which can produce free-cutting steels with high strength has been induced.

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综合介绍了国内外易切削钢的现状，重点介绍了易切削钢的种类及硫易切削钢的生产工艺。

The general domestic and aboard situation for free-cutting steel is reviewed. The kinds for free-cutting steel and the production process of sulfur free-cutting steel are emphasized.

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碳钢的光亮热处理主要有易切削钢等低碳钢的光亮退火处理以及光亮退磁。

Carbon steel bright heat treatment are mainly free-cutting steel and other low-carbon steel bright annealing, as well as bright demagnetization.

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