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Welded Pipe
Longitudinal Welded Steel Pipe is a type of steel pipe that is formed by bending steel plates or steel strips, and then the joints are welded along the length of the pipe (vertically) using the welding process. Its core feature is that the weld seam is parallel to the axis of the pipe, which is different from the spiral welded pipe where the weld seam is in a spiral shape.
Spiral welded pipe: It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strips into pipe blanks at a certain spiral angle (called forming angle), and then welding the pipe seams. It can be made of narrower pipes. Strip steel produces large diameter steel pipes. Its specifications are expressed as outer diameter * wall thickness. The welded pipe should ensure that the hydraulic pressure test, tensile strength and cold bending performance of the weld meet the regulations.
Add：Liaocheng City, Shandong Province, China
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