Shenzhen city engineering development co. Ltd. Was established in 2000 as a professional enterprise in science and technology development, production, marketing, energy conservation, environmental protection, low-carbon high-tech water cycle economy. The company operates in the following areas: domestic water purification units, group direct water equipment design, installation, maintenance; pure water, mineral water, industrial super-purified water, design and maintenance of deion water equipment; design, installation of piped water, groundwater, surface water bathing and swimming pool water treatment; industrial wastewater, domestic sewage treatment and reuse; rainwater harvesting and utilization; supply of water treatment-related filters and bulk distribution of consumables; installation and maintenance of solar energy, air heat water engineering engineering; and technological development of a total of more than 40 products in five major series and other new environmentally frien...