Ключевые слова: argon, arrows, background, bar, bottom, button, carbon dioxide, care, close, closeup, compression, connection, control, cylinders, electric, electric welding, energy flow, engineering, equipment, factory, filter, fitting, gas welding, gauge, gearbox, industrial, industry, input, installation, line, metal, meter, pipe, power, pressure, rebuctor, regulator, welder, work,