Shanghai building materials trades and trades ltd. Is registered on the 1st floor of building 888-3 of chen jia township road, zhongming city, shanghai, and is registered as the zhong ming zhuong market supervision authority, with legal representatives li zhengyun operating on general items: sale of metal materials; sale of electronic devices and electromechanical components; sale of high-performance non-ferrous metals and alloy materials; sale of new metal functional materials; advertising design, agency; advertising; advertising; advertising; advertising; software development. (in addition to projects subject to authorization under the law, the operation of the business is carried out autonomously under a licence)