Ключевые слова: adjustable wrench, assembler, background, boiler, builtin, bypass, circulation, conception, coupling, device, equipment, faucet, fittings, gas plant, gas wrench, heat, heating system, hydraulics, industry, metal, pipe, pipes, piping parts, plumber, plumbing, power, pressure safety, pump, repair, service, socket, solid fuel boiler, stop valve, stopcock, supply, supply pipe, system, systems, technology, temperature, tool, valve, warm floor, water, water circulation, work helmet,