The registered address of hangzhou-sung-jong-jong science and technology ltd. Is located in 1 12th floor of the hesheng building, 3588 road, gangnam avenue, zhejiang province, with the registration authority being the market supervision authority of the gao-xin district, hangzhou city, with legal representatives operating on general items: technical services, technology development, technical advice, technology exchange, technology transfer and technology promotion; internet sales (except for goods for which permission is required); distribution of electronic components; retailing of electronic appliances; sale of electronic appliances and electro-engineering components; sale of electrical appliances; electrical and cable operations; retail sale of hardware products; wholesale distribution of hardware products; sale of machinery spare parts and spare parts; sale of commercial goods on a daily basis; sale of wood products on a daily basis; sale of plastics; sale of handicrafts and gi...