Ключевые слова: abstract, air conditioning, background, brass, copper, cuprite, cylinder, diameter, dirty, electric, electrical, electricity, group, hank, industrial, industry, insulation, lacquered, line, lot, metal, metallic, new, objects, pattern, pipe, pipeline, plumbing, polished, reflection, rolling, round, row, set, shiny, skein, spool, stack, stainless, striped, supply, technology, texture, textured, tube, varnished, wired,