Ключевые слова: architectural, architecture, black, blueprint, building, closeup, collection, construction, construction drawing, construction industry, construction plan, drafting, engineering, engineering drawing, equipment, flat, grey, heap, house improvement, industrial, maintenance, metal, metal background, metal surface, metallic background, no people, nobody, occupation, paper, pile, repairing, roll, rolled, rolled up, scratched, scroll, set, silvermetal, sketch, stack, stainless steel, studio shot, variety, white,