Ключевые слова: aluminum, central, central heating, close up, communication, conduit, construction, district, duct, energy, equipment, heating, hot, industrial, infrastructure, insulation, line, main, metal, municipal, outside, patch, pipe, pipeline, plumbing, repair, russia, selective focus, snow, steam, steel, stream, structure, sunbeam, technology, thermal, town, transfer, transit, transport, tubing, water, winter,