Good pressure bearing capacity
The raw material steel plate determines the good pressure bearing capacity of Lsaw, and the wall thickness and material can be controlled to produce extremely pressure-resistant pipes.
High dimensional accuracy
The mechanical expansion of the pipe diameter can make the pipe size and wall thickness precision very high, and also make the pipe very straight.
High security
The weld quality is high, the submerged arc welding has a large penetration depth, the weld composition is stable, and the defect rate is low. In addition, the welds have been 100% subjected to non-destructive testing such as ultrasonic and X-ray. Even in extremely cold areas, brittle fracture can be prevented.
