spiral steelpipe

Spiral seam double submerged arc welded steel pipe production F219mm-F2540mm, material; Q235, Q345, X42-X70, L245, L290, L360-level various spiral steel pipe, widely used in natural gas, offshore oil piling, petroleum, chemical, electric power , heating, drainage, steam heating, hydropower station with a pressure pipe, thermal power, water and other long-distance transmission pipelines and piling, bridge and steel structure engineering.
spiral steelpipe