welding of longitudinal seam 纵缝焊接
longitudinal seam welding 纵缝焊接 ; 纵向缝焊 ; 纵向滚焊
longitudinal weld longitudinal seam 纵向焊缝
longitudinal seam welding machine 纵缝焊机
high-frenquency longitudinal-seam steel pipe 直缝高频焊管
equation of longitudinal seam 纵缝方程
Longitudinal -Seam Submerged 直缝埋弧焊管
This article discussed the residual stress of the HU-METAL method formed large diameter longitudinal seam welded steel pipe.
对HU - METAL法卷制成型大直径直缝焊钢管残余应力进行了分析讨论。
Because of the much thick wall of large capacity boiler drum, the pressed and weld longitudinal seam is used to manufacture the drum shell ring.
由于大容量电站锅炉汽包的壁较厚，所以在汽包筒节制造时常采用压制成两个半圆瓦片再焊接而成的方法。
According to the domestic pipeline construction demand to the pipe, it is proposed to import a longitudinal seam SAW steel pipe mill as early as possible.
根据国内管道建设的需要，建议尽早引进一条直缝埋弧焊管机组。
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