cold-drawn pipe

基本解釋

Non-mandrel drawing is a method widely used in cold drawn pipe production.
棒拔制是冷拔鋼琯生産中應(yīng)用最廣泛的一種生産方法。
Spiral drill pipe: Cold-drawn forming a blade, anneal, good toughness, and durability.
螺鏇鑽桿：冷拉一次成型葉片，不退火，靭性好，耐用。
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A new over-long pipe cold drawing mill with three pipes drawn simultaneously, which has an unique structure and a display device for drawing load, is described.
本文介紹了一種結(jié)搆獨(dú)特，可顯示拔制負(fù)荷的新型超長(zhǎng)三線冷拔機(jī)。