Stock photography, photos: Sheet metal welder. Stock photos of . Photograph: © API Images Click for a larger image and more information Keywords associated with this stock photo: welding, weld, air conditioning and heating, HVAC, ventilating, career, careers, job, jobs, employment, employee, employ, profession, vocation, worker, working, blue collar, construction, constructing, construct, build, building, manufactor, manufactoring, making, make, fabricate,