The registration address of the environmental engineering company, ltd., is located in room 101, one of the two blocks of the wankang street lutsu industrial zone, dongdong province. The registration authority is the market supervision authority of dong jing city and is represented by a legal person and operates in all parts of the country. It includes research and development, processing, production, sale, installation and maintenance of energy conservation products, specialized equipment for environmental protection, fans, hardware products, electrons, optical electronics, refrigeration equipment, air conditioning equipment, water curtain ventilation and cooling equipment, waste-water waste protection equipment, cold storage equipment; environmental air conditioning works, ventilation works, wet curtain works, environmental works, waste gas treatment works, cold storage works, cold gas works, interior and exterior works, municipal works, forest greening works; cleaning services; and energy conservation technology promotion services. (projects subject to legal approval to operate with the approval of the relevant department)