Additions and additions are located in the first category of medical equipment, the second category of medical equipment; the third category of medical equipment; the retailing of products for the production of medical personnel; the wholesale distribution of supplies for the production of medical personnel; the sale of articles for the production of medical supplies; the sale of articles for the sale of special labour protection products; the production of specialized labour protection supplies; the production of engineering and technical research and laboratory development; the retailing of technical services, technology development, technical advice, technology exchange, technology promotion; the manufacture of type i medical equipment; the sale of medical equipment in category ii; the production of protective supplies for medical personnel (except for ivory and its products); the retail sale of products for the production of medical personnel; the sale of articles for the sale of medical goods and clothing; the sale of articles for the sale of medical products and clothing for the sale of medical products; the sale of goods and clothing for the sale of medical products; and the sale of goods and equipment for the sale of medical products and articles for the sale of medical products, except for the sale of dangerous products. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)