The briefing covers quality of the shell pierced by the three-high piercing mill, thespecific rolling failures and countermeasures thereagainst.
简要地介绍了三辊穿孔机所穿毛管的质量及该穿孔机特有的轧制故障和
防措施。
〉
之相反,反之The briefing covers quality of the shell pierced by the three-high piercing mill, thespecific rolling failures and countermeasures thereagainst.
简要地介绍了三辊穿孔机所穿毛管的质量及该穿孔机特有的轧制故障和防措施。
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