The registered address of chinashan city's smart and smart technology ltd. Is located on the first floor of the 16th floor of wangqing street, 6th street, guangqing street, guangxi, nakayama city. The registration authority is the market supervision authority of nakayama city, represented by liu qingyong, and operates in the following areas: smart door locks, smart home products, safety guard products, lighting, doorbells, furniture accessories. (projects subject to legal approval to operate with the approval of the relevant department)