The spiral seam submerged arc welded steel pipe has a uniform wall thickness, looks good, is evenly stressed, and is durable. The spiral seam submerged arc welded steel pipe has uneven wall thickness and uneven stress on the steel pipe. The thin parts of the steel pipe will easily break. The uneven

WHAT ARE STAINLESS STEEL SQUARE HOLLOW SECTIONS?The term Square Hollow Section is abbreviated as SHS. SHS steel is a popular variation of structural steel tube with four equal sides that give it a symmetrical appearance. It comprises a flat surface that makes joining and welding simple, and just min

TUBULAR CLEANINGInternal surface is cleaned by using high performance air compressor to remove mill scales and rusty inside the pipe. For Heavy Rusty on Internal surface, it will be removed by using special rotating tool connect with motor run inside the pipe to eliminate the rust on pipe ID surface

1. Under the condition of not affecting the welding of the nozzle, the reserved length of the epoxy powder at the end of the polyethylene layer should be appropriately increased to prevent the 3PE anti-corrosion warping caused by the long stacking time of the steel pipe and the serious metal corrosi