The rigid polyvinyl chloride (PVC-U) building drainage rainwater pipe and pipe fittings are made of polyvinyl chloride resin as the main raw material, using high-quality additives, through scientific compounding, extrusion or injection molding. The product structure is designed reasonably and beautifully. The pipe fittings are compact and scientific in size, reliable in connection, and easy to operate and install. They are widely used in drainage rainwater systems for civil engineering buildings.

Hong Kong Depai International Co., Ltd. has jurisdiction over Weifang Depai Pipe Manufacturing Co., Ltd. and Shenzhen Depai Electronic Technology Co., Ltd.

Weifang Depai Pipe Manufacturing Co., Ltd. was established in March 2001, located in Weifang Economic and Technological Development Zone, producing a full range of PP-R pipes, PP-R nanotubes, PVC-U pipes, PE-RT pipes, PE pipes, PE. Mining pipe, PE ground source heat pump pipe, solar special pipe and pipe fittings and other products.

Products have passed ISO9001: 2000 international quality system certification, by the National Chemical Building Materials Testing Center, National Plastic Building Materials Testing Center, China Academy of Preventive Medicine, Shandong Provincial Health and Epidemic Prevention Station, Jinan Construction Engineering Quality Monitoring Station, Weifang City Product Quality Supervision and Inspection Institute It is tested and certified by the authoritative department and conforms to the German DIN8011 and DIN8078 industrial standards; it also conforms to the national standard GB/T1874.2.3-2002. Product production management strictly implements ISO9001: 2000 international quality system certification standards. The "Depai" brand pipe and fittings produced by the company are the key products promoted by the Construction Department of Shandong Province. The product quality is jointly underwritten by the People's Insurance Company of China and Ping An Insurance Company of China.

With more than 1,000 sets of pipe fittings, it is one of the most complete varieties of pipe fittings in the country, which makes the pipe and pipe fittings better match and increases the firmness. Dozens of national invention patents and utility model patents have made the production process of pipe and pipe fittings more advanced.

The company is based on people-oriented, integrity management for the purpose, depending on the quality of life, customer-oriented, always high, and contribute to society.

Founded in June 2006, Shenzhen Depai Electronic Technology Co., Ltd. is located in the Blue Sky Industrial Park, Shadi Ditang Road, Shajing Town, Baoan District, Shenzhen. It is an independent research and development production company, Shimai GPS satellite navigator, Deshu air humidifier, Germany. Shu air purifier, Deshu water purifier, Deshu water purifier, Deshu pure water machine, Deshu ozone water machine and other products manufacturers.