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Wall piercing

Wall piercing

Wall piercing

双语例句

1

Therefore , fatigue crack is easy to form on the inner wall of the piercing die , which will lead to the decline of the fatigue life , the increase of production costs , and the downgrade of steel tube quality .

因此，冲孔模内壁极易产生疲劳裂纹，使冲孔模使用寿命降低，生产成本增加，并且造成钢管质量下降。

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