Heze Sanlei Plastic Industry Co., Ltd., established in 2006, is a national high-tech enterprise specializing in the research, development and production of various new plastic pipes. The company is located at the southern end of Guangzhou Road, Dingtao District, Heze City, covering an area of more than 150 mu, with total assets of 150 million yuan, a modern standard factory building of 45,000 square meters and 30 pipes production equipment. The annual output of various types of plastic pipes such as PVC-U (φ 20-φ 500mm), HDPE (φ 20-φ 1200mm) and PE mesh steel skeleton polyethylene composite pipe is over 35,000 tons. While focusing on the steady development of the main business sector, the company actively promoted the multi-sector operation mode driven by innovation and development, focusing on the research and development of porous steel belt polyethylene composite pipe, which has the characteristics of high ring stiffness and damage resistance, good corrosion resistance and wear resistance, light weight, convenient transportation and construction, simple welding process and low comprehensive engineering cost. Among them, the manufacturing and production of PE steel-plastic composite pipe is the fifth in China, which is mainly used in chemical industry, mining, heating, fire protection, urban underground pipe gallery and other projects.