(e) engineering services; advertising; advertising; conference and exhibition services (to be approved by the relevant sector); professional design services; manufacturing of radar and ancillary equipment; manufacturing of communications equipment; manufacturing of exercise and powder metallurgical products; manufacturing of car wash equipment; manufacturing of materials; marketing of equipment for the production of materials; contracting of works for the production of materials; distribution of engineering services; flat design; engineering services; sale of software and equipment for the sale of equipment for the sale of robotics; production of equipment for the sale of equipment for the sale of electronics and equipment for the sale of robotics; production of equipment for the sale of equipment for the sale of electronics and mechanicals; production of equipment for the sale of electronics and equipment for the sale of electronics and mechanicals; production of equipment for the sale of equipment for the sale of electronics and equipment for the sale of robotics and equipment for the sale of electronics and mechanicals. Licensing projects (in addition to projects subject to legal authorization, operating independently of the law on the basis of a business licence): manufacturing of large recreational facilities; flight training; maintenance of civil aircraft; construction of stage works. (a project subject to approval by law may only be carried out with the approval of the relevant department, depending on the documents or licences approved by the relevant department) (no activity shall be carried out in the category of projects prohibited and restricted by the state and municipal industrial policy