The company mainly produces double-sided submerged arc welding spiral tubes with Ф219-3600mm wall thickness of 6mm-40mm, which fills the gaps of large-diameter thick-walled spiral pipes, thick-walled spiral pipes and large-diameter spiral pipes in China. The company has 6 large steel pipe production lines with an annual output of 300,000 tons of spiral steel pipes. The materials are Q235B, Q345B (16 manganese), 20#, L245, L290. We have passed the ISO9001-2000 international system certification and obtained the national quality once. Special equipment manufacturing license issued by the General Administration of Inspection and Quarantine.
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