Production of medical protective masks; Manufacturing of sanitary materials and medical supplies; Category II Medical apparatus and instruments retail; Production of non-medical daily protective masks; Other businesses not listed in the wholesale department (excluding business items requiring approval); Other retail businesses not specified (excluding projects requiring approval); To engage in the export business of its own products and the import business of the machinery and equipment, spare parts and raw and auxiliary materials needed by the enterprise (without attaching a catalogue of import and export commodities), except the commodities and technologies that are restricted by the state or prohibited from import and export by the company; The import and export of all kinds of commodities and technologies (without attaching the catalogue of import and export commodities), except the commodities and technologies that are restricted by the state or prohibited from import and export by the company.