Main:0738.05.5 "Assembly and operation of gas supply equipment and systems" 0738.05.01.5 "Technician: assembly and operation of gas supply equipment and systems"
Main:0716.11.5 "Operation of crane transport, construction, road machinery and equipment" 0716.11.01.5 "Technician: operation and maintenance of crane transport, construction, road machinery and equipment"
Main:0713.01.5 "Electric plants, networks and systems" 0713.01.01.5 "Technician: operation and technical maintenance of electric plants, networks and systems"