In guangzhou, the registration address is 4 101 houses (part: 215) located in the tianhuang district of guangzhou city, located on 6th street, with legal representatives serving as market supervision authorities for the tianxiang district of guangzhou, including security system monitoring services; internet sales (other than the sale of goods for which authorization is required); professional design services; sale of electronics; wholesale distribution of electronic appliances; technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; wholesale distribution of computer hardware and hardware and assistive equipment; retail distribution of computer software and assistive equipment; 3d printing services; office services; typing and photocopying; software sales; computer and office equipment maintenance; rental services for office equipment; sale of office equipment; sale of office equipment; software consumption; software development; information technology advisory services; electrical installation services;