The registration address of the qinghe county's science and technology company is located in area b of the science and technology enterprise of small and medium enterprises in qinghe county, with the registration authority being the qinghe county market supervision authority and with the participation of representatives of legal persons, and includes research and development, technical services, development and transfer of safe and protective products; sales of fire-fighting equipment, labour safety supplies, packaging materials; sale of plastics products (excluding membranes, membranes); sale of hardware, electronics; sale of electrical equipment switch assembly assembly; sale of type ii medical devices, masks (non-medical); import and export of goods or technology (except for goods or technology whose import or export is prohibited by the state or administrative approval) (except for projects prohibited by laws and regulations, decisions of the state council; permission to operate on projects restricted by laws and regulations, state council decisions)***