https://www.calibresearch.co.uk/job-search/30242-commercial-gas-hvac-engineer/electrical/north-west/job 2024-04-23 09...: Essential ACS Gas - COCN, CIGA, CORT, ICPN, CDGA, TPCP1, TPCP1A Desirable but not essential: City & Guilds 2079 F-Gas...
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