Ключевые слова: 3d, architectural, architecture, art, background, building, clean, concept, construction, design, drainage, engineering, equipment, futuristic, gas, indoor, industrial, industry, interior, line, maintenance, manage, modern, new, oil, pattern, perspective, pipe, pipeline, pipes, piping, planing, plastic, plumbing, polymer, pvc, refinery, safety, system, technology, tube, under, underground, urban, water, white, work,