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https://squareblogs.net/hawkwi....tch62/gas-service-en
https://canvas.instructure.com..../eportfolios/3285613
What Does a Commercial Gas Engineer Do? Commercial gas engineers work on a range of appliances such as boilers and heating systems. They may also install and maintain ductwork. Some rely on their technical expertise to improve energy efficiency and comply with regulations. Some of them take on management positions or start their own business. This