Well-known domestic manufacturers of winding tape include Xipu, Sheng Da, Changyuan and Shuangliu. Among them, Xipu has the highest quality. Xipu is a professional manufacturer of pipeline anticorrosion materials, which mainly supplies large-scale domestic projects such as west-to-east gas transmission, but the price is too expensive for general domestic projects. The quality of Sheng Da, Changyuan and Shuangliu is almost the same, and they all belong to the first-class quality in China, and they all participate in the supply of pipeline anticorrosion products for projects such as west-to-east gas transmission in China. Relatively speaking, Sheng Da is cheap, with the highest cost performance, and Changyuan is expensive, but Changyuan has a brand advantage, and Shuangliu is an old manufacturer. In addition to these four major manufacturers, Wal-Mart is a new army, but the quality of Wal-Mart products can not reach the level of the top four. Other small manufacturers just play at the price station, and the quality cannot be guaranteed. Pipeline anticorrosion still emphasizes long-term effect. Usually the design life is twenty or thirty years, so it is recommended to choose the first few products.