Sichuan union environmental science and technology ltd. Is registered at 25 xinhua avenue (529) in the chengdu dragon industrial park, with legal representatives guo yisheng and general projects: environmental advisory services; manufacture of specialized equipment for environmental protection; sale of specialized equipment for environmental protection; manufacture of equipment for the protection of the environment; manufacture of equipment for the removal of dust technology; air pollution prevention and control services; water environmental pollution services; technical services, technology development, technical advice, technology exchange, technology transfer and technology promotion; installation services for general mechanical equipment; development of intelligent water systems; development of mechanical equipment; manufacture of metalworking machinery; processing of mechanical parts, parts and components; sale of mechanical and electrical equipment; sale of machinery equipment; development of hardware products; retail distribution of hardware products; domestic trade agents; engineering and technological research and development; import and export of goods; export of technology; gas, liquid separation and pure equipment; monitoring of environmental protection. (ii) licensing of projects (in addition to those subject to legal authorization, operating on an autonomous basis under a legal licence): construction works; design of construction works. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)