Shenzhen city polytechnic co. Ltd. Has a registered address in shenzhen city, anhua road, no. 56 b. 401 on the street of the yongkang district in shenzhen city, with the registration authority of the shenzhen city market supervision authority, with legal representatives liao yongzhong, and has a general scope of operation, including the sale of metal tools; brand management; commercial complex management services; enterprise management; business management consulting; marketing planning; technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; information advisory services (other than licensed information advisory services); metal tools manufacturing; casting machines; instrumentation instrumentation; electrical instrumentation forms; new material technology development; jewellery jewellery manufacturing; jewellery retailing; professional design services; craft and ceremonialware manufacturing (other than ivory and its products); goods import and export; technology import and export. (except for projects subject to legal authorization, operating on an autonomous basis with a business licence)。