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大口徑直縫埋弧焊鋼管加工技術(shù)

大口徑直縫埋弧焊鋼管加工技術(shù)

大口徑直縫埋弧焊鋼管加工技術(shù)：① 螺紋加工鋼絲頭無錫大直徑管，齒形、節(jié)距等均需與套筒齒形、節(jié)距連接在一起，并通過支撐量規(guī)查看合格。② 加工鋼螺紋時(shí)應(yīng)采用水溶性...

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