The hot metal pretreatment of injecting and mechanical stirring are analyzed, then the "KR" hot metal pretreatment is confirmed to use.
通过对喷吹法和机械搅拌法铁水预处理工艺进行分析，确定选用KR法铁水预处理工艺。
The hot metal pretreatment of injecting and mechanical stirring are analyzed, then the "KR" hot metal pretreatment is confirmed to use.
通过对喷吹法和机械搅拌法铁水预处理工艺进行分析，确定选用KR法铁水预处理工艺。
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