Ключевые слова: adjustable wrench, belt, bolt, cap, cartoon, cheerful, clip art, comic book, construction, coveralls, cute, engineering, expertise, factory, faucet, full length, horizontal, humor, illustration and painting, industry, installing, laughing, manual, mechanic, men, natural gas, occupation, people, pipe, pipeline, plumber, pressure, recovery, repairman, sewage, shaft, tap, technology, tool, tool belt, toolbox, tube, valve, water, worker, working,