In recent years, with the acceleration of China's urbanization process and the huge pressure of population, resources and the environment, in order to ensure the sustainable development of the national economy, the Chinese government has increased its investment in urban infrastructure year by year. The specifications and specifications are constantly being enriched, the output is constantly increasing, and the quality is constantly improving. Especially, plastic pipes are developing faster, which has become a hot spot for investment today.

　　In 1933, the British ICI company first discovered that PE has developed to the point that PE is produced by a variety of processes and has a variety of structures and characteristics and a variety of uses for a variety of resins, which has accounted for one-third of the world's synthetic resin output. Number one. One of the best uses of PE is that it can be used to produce pipes that transport any medium except strong acids and alkalis. According to foreign statistics, the current annual consumption of PE pipes in the world's water supply pipelines is about 1 million tons or more. Widely used in water supply, sewage, agricultural irrigation, gas transportation, fine particle solids transportation in mines, oil fields, chemical industry and post and telecommunications fields.

　　"National Chemical Building Materials Industry 'Tenth Five-Year Plan' and 2010 Development Plan Outline" pointed out: The promotion and application of plastic pipes are mainly UPV-C pipes and PE pipes. By 2005, in the process of new construction, reconstruction and expansion nationwide, 70% of the building drainage pipes are plastic pipes, 50% are plastic pipes, 60% of the building water and hot water heating pipes are plastic pipes, and 50% of the urban water supply pipes are plastic pipes. 70% of village and town water supply pipelines use plastic pipes, 20% of urban gas pipelines use plastic pipes, and 80% of electric wire protection sleeves use plastic pipes.