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Project Location: Iran.Product: LSAW steel pipe.Specifications: 600*10*12000mm.Application: Industry construction.Arrival time: 06.28.2022.The pipes have arrived in Iran and were put into project use. Many cooperations have given the customer full confidence in THREEWAY STEEL.
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1. The acceptance principle of spiral steel pipe.The quality inspection and acceptance of the spiral welded pipe shall be carried out by the technical quality supervision department of the supplier. The supplier must ensure that the delivered spiral welded pipe meets the requirements of the correspo
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Spiral steel pipe maintenance medium transportation is an important part of it. Spiral steel pipe is the anti-corrosion of the outer wall of high-grade steel oil, gas, water, and heating pipelines, and the durability of spiral steel pipe has improved to a better level. The durability of the spiral s
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1. Welding processIn the welding process, the welding method of the spiral steel pipe and the straight seam welded pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is greatly increased, and the welding residual stress
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