91国产精品

1. Thick-walled spiral pipe before molding

Spiral pipe manufacturers adopt advanced double submerged arc production process, easy to control weld quality and welding position can be achieved in the best position, not prone to the wrong side, partial and incomplete penetration welding defects. Spiral pipe using a special welding process, welding can be achieved in the optimum welding position, without any error defects, to ensure the eligibility of thick-walled spiral pipe, quality is assured. 

2. Thick-walled spiral steel molding

Spiral pipe forming process, the steel plate to be deformed even small residual stress, surface scratches do not produce, so I chose the production of spiral steel pipe to be careful, do not have to scratch the surface to be uniform. Spiral pipe machining diameter and wall thickness in the range of sizes greater flexibility, especially in the production of high-grade steel thick-walled pipes, especially small and medium-diameter thick-walled tube side, there are other processes incomparable advantages, to meet users spiral pipe specifications more demanding.