upset tube 中文意思是什麼
upset tube
解釋
鐓粗管-
In order to decrease the cost, disabled tube has been classified in upset forging repair technology, which produces a good economical benefit
但外加厚油管加工生產中,廢殘品較多,為降低成本,我廠對廢油管進行了分類,並採用再鐓鍛工藝修復,取得了良好的經濟效果。
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