DN50 40X40 Hot Dipped Galvanized Square Steel Pipe 

Galvanized square and rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal side lengths. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length. Usually 50 pieces per pack. Also known as square and rectangular cold-formed hollow steel, referred to as square tube and rectangular tube, codenamed F and J respectively. Mainly used in curtain wall, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc. Description Product Name Galvanized Square Steel Pipe Material GB / T-20 (National Standard) ГОСТ-20 (Form…