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Produced by cold drawing or cold rolling seamless or welded steel tube through precise dies, followed by stress-relieving annealing. Features tight dimensional tolerances, excellent surface finish, uniform mechanical properties, and high concentricity.
Manufactured by seamless or welded (ERW, LSAW, SSAW) process from high-strength carbon steel. Features high pressure resistance, good weldability, excellent toughness, and consistent dimensional accuracy.
Produced by seamless or welded process from low temperature carbon steel or alloy steel, designed to maintain high toughness and impact resistance at sub-zero temperatures down to -196°C. Features fine grain structure, excellent low-temperature impact properties, good weldability, and compliance with stringent NDE requirements.
Manufactured by seamless or welded process (ERW, LSAW, SSAW) from high-strength carbon steel, designed for crude oil, refined petroleum product, and natural gas transmission. Features high pressure resistance, excellent low-temperature toughness, good weldability, and uniform dimensional accuracy.
Produced by hot-dip aluminizing of carbon or alloy steel tube, forming a continuous, intermetallic aluminum-iron alloy layer with an outer pure aluminum coating. Features excellent resistance to high-temperature oxidation, good corrosion resistance in sulfur-containing and high-temperature environments, and improved heat reflectivity.
Our Membrane Water Wall Panel, also known as a boiler membrane wall or membrane tube wall, is a factory‑prefabricated radiant heating surface that forms the airtight enclosure of the boiler combustion chamber.
Produced by helically forming steel coil into a tubular shape and welding the spiral seam using submerged arc welding (double-sided or single-sided). Features wide diameter range, good dimensional consistency, high strength, and cost-effective production for large diameters.
Produced by cutting or rolling threads onto plain steel pipe ends (for coupling connections), or by cold rolling internal/external helical ribs along the tube length (for enhanced heat transfer).
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