Ключевые слова: abstract, art, backdrop, background, black, concept, conduit, connection, construction, creative, decoration, design, element, engineering, equipment, fabric, geometric, graphic, illustration, industrial, industry, line, lines, material, maze, metal, metallic, modern, object, pattern, pipe, pipeline, pipes, piping, plumbing, print, seamless, shape, steel, system, technology, textile, texture, tube, tubing, wallpaper, water, white,