National Occupational Classification (NOC) 2021 Version 1.0
- 7 - Trades, transport and equipment operators and related occupations
- 72 - Technical trades and transportation officers and controllers
- 724 - Technical maintenance trades
- 7240 - Machinery and transportation equipment mechanics (except motor vehicles)
- 72400 - Construction millwrights and industrial mechanics
- 72401 - Heavy-duty equipment mechanics
- 72402 - Heating, refrigeration and air conditioning mechanics
- 72403 - Railway carmen/women
- 72404 - Aircraft mechanics and aircraft inspectors
- 72405 - Machine fitters
- 72406 - Elevator constructors and mechanics
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