There are many types and specifications of galvanized square steel pipes, which are processed from steel plates of different types, lengths, and thicknesses. Basically, it can be divided into six specifications: 20 * 20 * 0.8-1.8mm, 25 * 25 * 0.8-2.0mm, 30 * 30 * 0.8-2.0mm, 25 * 25 * 0.8-2.0mm, 40 * 40 * 0.8-2.2mm, and 50 * 50 * 0.8-2.0mm. According to the specific needs of customers, galvanized square steel pipes of different specifications can generally be customized to meet their different applications.