In the production of thick wall tube, due to higher deformation strength, the difficulty of controlling weld joint is increased. For this characteristic, through study, we use special forming principle and configuration, make the deformation of the strip is more stable, so as to produce qualified pipe.

The φ76x5mm unit and φ114 x 11mm unit developed by us were successfully delivered and accepted, providing the user with high quality and high value-added welded pipe products.