Ключевые слова: air, building, conditioner, conditioning, construction, copper, diy, engineer, equipment, fix, flow, freon, gas, high, home, industry, installation, installing, job, line, liquid, male, man, metal, new, people, pipe, pipes, piping, plumber, plumbing, pressure, professional, refrigerant, refrigeration, screwdriver, service, shut, system, tool, wall, work, worker,