Piotr Strzelczyk INSTALSAT

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

33.14.Z - Repair and maintenance of electrical equipment

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

43.21.Z - Electrical installation

47.42.Z - Retail sale of telecommunications equipment in specialised stores

47.43.Z - Retail sale of audio and video equipment in specialised stores

80.20.Z - Security systems service activities

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