Keywords
30-35, 30-35 years, 35-40, 35-40 years, adult, adults, adults only, african, african ethnicity, angle, blue, button, button down shirt, casual, casual clothing, caucasian, caucasian ethnicity, chimney, clipboard, cloth, clothing, day, discussion, down, electricity, energy, equipment, ethnicity, foreman, fuel, fuel and power generation, generation, group, hard, hard hat, hat, hold, holding, industrial, industrial equipment, industry, jeans, length, lifestyles, low, low angle view, manual, manual worker, men, mid, mid adult, mid adult men, multi-ethnic, multi-ethnic group, occupation, only men, outdoors, people, plant, power, power station, rail, railing, rolled, rolled up sleeves, shadow, shirt, sky, sleeves, smoke, smoke stack, stack, staircase, stand, standing, station, structure, three-quarter, three-quarter length, tie, two, two people, up, view, worker, years, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, 1574r-09051, 1574r 09051, 1574r09051