The registered address of zhengzhou city environmental protection equipment ltd. Is in guo zheng village, tang zheng city, and the registration authority is the city's market supervision authority, represented by legal persons and includes environmental equipment, water treatment filtering equipment, installation and sale of cooling equipment; water treatment agents, activated carbon, filters, fillings, plastic products, instrumentation forms, distribution and installation of pipeline valves, hardware accessories, construction materials; import and export of goods and technology ***