HDPE hollow-wall spiral wound pipe is made from high-density polyethylene raw material and formed through hot extrusion winding. In addition to the common characteristics of plastic pipes such as excellent corrosion resistance, high insulation, smooth inner wall, and low flow resistance, it also features an exceptional ring stiffness, good strength and toughness, light weight, high impact resistance, and resistance to breakage due to its unique hollow "I"-shaped structure. As a mature product, HDPE spiral reinforced pipe has long been widely used abroad and has been recognized by the Ministry of Construction in China as a key promoted product. The pipe's specifications, dimensions, and performance comply with the requirements of the GB/T19472.2-2017 standard.