The registration address of sichuan de luen sponge engineering ltd. Is located at the 4th floor of the 8th building, 1333 tianlong boulevard, west chengdu golden field industrial park, with the registration agency, the market supervision authority for the golden cow area, represented by a legal person, and is the scope of operation including construction of the house; water resources management services; natural water collection and distribution; construction of the sewage treatment plant; construction of the design of the municipal works; construction of the plumbing works; construction of the mechanical engineering works; construction of the intellectual installation engineering works; installation of mechanical and electrical equipment; construction of the landscaping project; construction of the river and lake governance engineering works; construction of the geotechnical engineering works; subcontracting of construction services; and sale of plastics, mechanical and electrical ...