at a school, institute, or branch of the Armed Services; OR successful completion of the two-year Trades Specialist (Plumber... Descriptions of Duties: Trades Specialists (Plumber & Steamfitter) perform journeyman level plumbing and steam-fitting work and may supervise...
at a school, institute, or branch of the Armed Services; OR successful completion of the two-year Trades Specialist (Plumber... Descriptions of Duties: Trades Specialists (Plumber & Steamfitter) perform journeyman level plumbing and steam-fitting work and may supervise...
at a school, institute, or branch of the Armed Services; OR successful completion of the two-year Trades Specialist (Plumber... Descriptions of Duties: Trades Specialists (Plumber & Steamfitter) perform journeyman level plumbing and steam-fitting work and may supervise...