Square Tube, also known as square hollow section (SHS), is a type of steel tube with a square cross-section. It is typically manufactured through welding processes, forming steel strips into a tubular shape with precise dimensions.

Welded Pipe is manufactured by rolling steel plates or strips into a cylindrical shape and then welding the seam. Unlike seamless pipes, welded pipes are produced with high efficiency and can be made in a wide range of sizes and specifications.

Spring Flat Bar is a type of flat steel product made from high-quality spring steel. It is specifically designed to provide superior resilience and the ability to return to its original shape after deformation.