Ключевые слова: background, construction, cut, cutout, cutter, cutting, device, equipment, hand, heating, hose, industrial, industry, infrastructure, isolated, knife, manual, manufacturing, materials, metal, object, pipe, pipeline, pipework, piping, plastic, plumbing, polypropylene, polythene, pvc, red, repair, scissors, shape, steel, supply, tool, tube, water, white, worker,