CPV: 31000000 Electrical machinery, apparatus, equipment and consumables; lighting, 33000000 Medical equipments, pharmaceuticals and personal care products, 34000000 Transport equipment and auxiliary products to transportation, 35000000 Security, fire-fighting, police and defence equipment, 42000000 Industrial machinery, 44000000 Construction structures and materials; auxiliary products to construction (except electric apparatus), 50232100 Street-lighting maintenance services, 50411100 Repair and maintenance services of water meters, 50411200 Repair and maintenance services of gas meters, 50411300 Repair and maintenance services of electricity meters, 50514100 Repair and maintenance services of tanks, 50411500 Repair and maintenance services of industrial time-measuring equipment, 50413100 Repair and maintenance services of gas-detection equipment, 50413200 Repair and maintenance services of firefighting equipment, 50514000 Repair and maintenance services of metal containers, 50510000 Repair and maintenance services of pumps, valves, taps and metal containers, 50511000 Repair and maintenance services of pumps, 50511100 Repair and maintenance services of liquid pumps, 50511200 Repair and maintenance services of gas pumps, 50512000 Repair and maintenance services of valves, 50513000 Repair and maintenance services of taps, 50514200 Repair and maintenance services of reservoirs, 50514300 Sleeving repair services, 50532000 Repair and maintenance services of electrical machinery, apparatus and associated equipment, 50750000 Lift-maintenance services, 50532100 Repair and maintenance services of electric motors, 50532200 Repair and maintenance services of transformers, 50532300 Repair and maintenance services of generators, 50532400 Repair and maintenance services of electrical distribution equipment, 50700000 Repair and maintenance services of building installations, 50711000 Repair and maintenance services of electrical building installations, 50720000 Repair and maintenance services of central heating, 50721000 Commissioning of heating installations, 50730000 Repair and maintenance services of cooler groups