| 1. | Thin - walled steel cylinder spiral welding machine
薄壁螺旋焊管机 |
| 2. | Spiral welded steel pipe
螺旋焊接钢管 |
| 3. | Spiral weld helical weld
螺旋形焊缝 |
| 4. | Spiral welding steel pipe
螺焊钢管 |
| 5. | Spiral tube forming machinethin - walled steel cylinder spiral welding machine - duct forming machine - sanben technology co . , ltd . - cold curved shaping machinery -
产品展示所有产品螺旋圆管系列薄壁螺旋焊管机-圆管系列-江阴三本科技有限公司-专业钣金设备开发研制商- |
| 6. | Sichuan petroleum administration ziyang steel pipe plant ( zspp ) is the designated factory by cnpc to manufacture spiral arc - welded steel pipe ( shortened as " spiral welded pipe " )
四川石油管理局资阳钢管厂是中国石油天然气集团公司螺旋缝双面埋弧焊钢管（以下简称螺旋焊管）定点生产厂。 |
