AUDIOTECHNICY.PL Marek Konstantynowicz

43.29.Z - Specialized construction works

33.13.Z - Repair and maintenance of electronic and optical devices

43.21.Z - Installation of electrical systems

43.99.Z - Other specialized construction works, not classified elsewhere

46.90.Z - Non-specialized wholesale trade

47.19.Z - Retail trade

47.43.Z - Retail trade

47.91.Z - Intermediary retail sale, non-specialized

47.99.Z - Retail trade

61.10.Z - Activities in the field of wired, wireless, and satellite telecommunications

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

63.12.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

71.12.Z - Engineering activities and related technical consultancy

74.10.Z - Specialized design activities

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified

77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms