KRZYSZTOF TRZECIAK ELKONET-ALARM

33.14.Z - Repair and maintenance of electrical equipment

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

33.20.Z - Installation of industrial machinery and equipment and outfit

43.21.Z - Electrical installation

47.54.Z - Retail sale of electrical household appliances in specialised stores

47.79.Z - Retail sale of second-hand goods in specialised stores

47.91.Z - Retail sale via mail order houses or via Internet

80.20.Z - Security systems service activities

95.11.Z - Repair and maintenance of computers and peripheral equipment

95.12.Z - Repair and maintenance of (tele)communication equipment

95.21.Z - Repair and maintenance of consumer electronics