The minimum size of the square rectangular pipe is 30×30, with a minimum wall thickness of 2mm. The maximum size is 800×800mm, and the maximum wall thickness is 30mm. The company's products are mainly applied in four major fields: ships, roads and bridges, steel structures, and engineering. They cover ten major sections: ship marine engineering, road and bridge construction, residential assembly, engineering equipment, tower crane lifting, mining construction, vehicle engineering, precision machinery, modern agriculture, and new energy.