... - case hardening steels 表面淬火钢 - quenching and tempering steels 调质钢 - nitriding steels 氮化钢 ...
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The new domestic - developed plastic mould steels include prehardening steel . age hardening steel, quenching-tempering steel, cold -forming steel, and anti - corrosion steel, etc.
国产新型塑料模具钢主要有预硬钢、时效硬化钢、淬火——回火钢、冷挤压成型模具钢、耐蚀钢等类型。
The principle for the oil-quenching and tempering technology of two high chromium martensitic stainless steels is introduced.
介绍两种高铬马氏体不锈钢的油淬火回火工艺原理；
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