Sichuan and city mapping instruments ltd. Is registered at no. 018, no. 1st floor, no. 4, no. 4 north of the sanctuary area, and is registered as the market supervision authority for the golden cow area, represented by the legal person wang lai, covering the research and sale of instrument instruments; computer software development, sale; wholesale, retail: electronic products, communications equipment, hardware delivery, office supplies; engineering survey design, engineering project management, land preparation; and mapping services. (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities)。