Hot-rolled or cold-rolled galvanized strip or galvanized coil is used as blank, cold bending process molding, and then made by high-frequency welding. The cold-formed hollow steel pipe was made by hot-dip galvanizing. Galvanized square pipe is divided into cold galvanized square pipe and hot galvanized square pipe, the difference is that the processing process is different when galvanized, cold galvanized square pipe is formed by electric galvanizing, and hot galvanized square pipe is immersed in about 500℃ melted zinc liquid, so that the surface attached zinc layer. Galvanized square pipe has the characteristics of strong anti-corrosion effect, strong anti-corrosion ability, high strength, good plasticity, small density, light weight, beautiful shape and so on. It is widely used in construction, machinery manufacturing, electric power engineering, transportation, agriculture, chemical machinery, automobile chassis manufacturing , airport construction and other fields.

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.