... three roll piercer 三辊穿孔机 three roll piercing 三辊穿孔 three stand mill 三机座轧机 ...
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three-roll piercing mill 三辊式穿孔机 ; 三辊穿孔机
three-roll piercing and rolling combined 三辊联合穿轧
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Briefly described in the article are the structure of the three - roll piercing mill and troubles and failures frequently occurring in the operation thereof.
简介了三辊穿孔机的结构以及在生产过程中的常见故障和事故。
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