37 Building construction; repair of lifting machines, lifting apparatus, lifting vehicles, data processing equipment, electronic remote and speed controls, limit switches, electronic cards, power supplies and batteries, sensors and sensor emulators, optical, measuring and signalling apparatus and instruments, machines for storage purposes, storage containers and units, and crane and hoist rails and their parts and components; installation services of lifting machines, lifting apparatus, lifting vehicles, data processing equipment, electronic remote and speed controls, limit switches, electronic cards, power supplies and batteries, sensors and sensor emulators, optical, measuring and signalling apparatus and instruments, machines for storage purposes, storage containers and units, and crane and hoist rails and their parts and components; installation, maintenance and repair of cranes, hoists, machine tools and lifting equipment; consultation relating to installation, maintenance and repair of cranes, hoists, machine tools and lifting equipment.