The registration address of chengdu wanchida smart technology ltd. Is located at no. 8 of the 18th street of the wuhuang province, with the registration authority being the market and quality control authority of the wuhou district, with the legal representative of sujinland, and includes software development; sales of: security products, cameras, monitors, electromechanical equipment, ornamental materials, electrical and electronic items, hardware exchange, office equipment; construction works; intelligent engineering works; communications engineering; security engineering; and construction of mechanical and electrical engineering. (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities)。