Sale: medical devices、 fitness equipment、 Disinfection supplies、 Hygiene products、 office supplies、 Glassware、 Laboratory equipment and consumables、 Mechanical and electrical equipment、 Computer hardware, software and consumables、 teaching equipment、 Building Materials、 Clothing, shoes and hats、 Electronics( Does not include audio-visual products)、 Metal materials、 knitwear、 Hotel supplies、 Arts and Crafts( Does not contain ivory and its products)、 Decorative materials、 Mechanical and electrical equipment、 Refrigeration equipment、 leather products、 photographic equipment、 plastic products、 furniture、 Daily necessities、 Instruments、 Hardware and Electrical、 Chemical products( Does not contain dangerous chemicals and toxic substances)、 agricultural machinery and equipment、 agricultural and sideline products、 Santak products、 Agricultural machinery parts、 Fresh meat、 Fresh aquatic products、 feed、 cosmetic( Finalized packaging); Food business( Catering services not included), Medical equipment rental and on-site repair, Electronic product technology development, design、 Production、 acting、 Launch domestic advertising business, Corporate image planning, Biotechnology Extension Services, Exhibition services, Conference Services( No accommodation), Import and export of goods or technology( Except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval), Grain procurement。