螺旋缝埋弧焊钢管
helical seam submerged-arc welding steel pipe
SAWH pipe
螺旋缝焊接钢管
spirally welded steel pipe
螺旋缝埋弧焊管
spiral submerged arc welded pipe
Spiral SAW pipe
spiral seam arc weld pipe
SSAW pipe
SAWH pipe
螺旋埋弧焊钢管
spiral submerged welded pipe
SSAW pipe
spiral submerged arc welded pipe
spirally steel pipe
直缝埋弧焊接钢管
longitudinal submerged arc welded(LSAW)pipe
LSAW pipe
大口径螺旋焊接钢管
Large -sized spiral welded pipe
螺旋焊接钢管
spiral welded steel pipe
helical welding steel pipe
螺旋埋弧焊管
SAW spiral weld pipe
spiral submerged arc welded pipe
Spiral SAW pipe
SAW spiral welded pipe
Submerged arc weld spiral pipe
spiral welded pipe
Submerged- arc Weld Spiral Pipe
spiral submerged welded pipe
SSAW pipe
SAWH pipe
SAWH
双面埋弧螺旋焊接
double submerged arc helix welding
小管径螺旋埋弧焊管
Small-sized spiral submerged-arc welded pipe
大型直缝埋弧焊钢管
large diameter longitudinal seam submerged arc welding(LSAW) pipe