Plastic pipes have been used in water supply and drainage systems in developed countries in Europe and America since the 1930s. In 1933, plastic pipes were first industrialized in France and the United States. In 1936, Germany developed and applied plastic pipes for water, acid and construction sewage transportation. In 1939, Britain laid the world's first plastic water pipeline. Since then, with the development of the plastic industry, new plastic materials have been introduced, which has expanded the scope of application of plastic pipelines. Good corrosion resistance and portable quality have promoted plastic pipelines to gradually replace traditional material pipelines in various fields. Up to now, plastic pipes have a history of more than 70 years. They have become relatively mature products in production technology, quality standard system, design and construction specifications. They are widely used in developed countries and regions such as Europe and the United States. After decades of development, plastic pipes have been widely used, and there are many kinds of products. The main varieties are basically divided into three categories: PVC, PE and P P.