Straight seam welded pipes are manufactured by forming a flat strip of stainless steel into a cylindrical shape and then welding the edges together along a straight line. This welding method results in a visible seam on the surface of the pipe. Straight seam welded pipes are widely used in various industries and applications, including water supply systems, plumbing, structural frameworks, and general-purpose piping.

Spiral welded pipes are formed by helically welding stainless steel coils or steel strips to create a continuous spiral seam. This welding technique allows for the production of pipes with larger diameters. Spiral welded pipes are known for their high strength and ability to withstand high-pressure applications. They are commonly used in industries such as oil and gas transportation, wastewater treatment, and piling and foundation systems.