Ключевые слова: architectural, architecture, blue, blueprint, building, building helmet, close up, collection, construction, construction drawing, construction industry, construction plan, drafting, engineering, engineering drawing, equipment, flat, grey, hard hat, heap, house improvement, industrial, maintenance, metal, metallic background, metallic surface, nobody, occupation, paper, pile, repairing, roll, rolled, rolled up, scratched, scroll, set, silver metal, sketch, stack, stainless steel, studio shot, variety, yellow,