Main:5-43.29. 01 "Installation and adjustment of construction machines and mechanisms" 5-43.29.01. 01-3 "Locksmith: assembly and adjustment of construction machines and mechanisms"
Newer 6-01.61. 01 "Technical support of agricultural works" 6-01.61.01. 01-3 "Locksmith for repairing agricultural machines and equipment"
Older 5-42.11. 01 "Technical support of road-construction and improvement works" 5-42.11.01.03-3 "Locksmith for repair of road construction machines and tractors"