Ключевые слова: a metal bar, agriculture, background, bank, barrel, beams, bricks, builder, building, columns, concrete, construction company, construction of the plant, construction site, crane, diamond, elevator, excavator, frame, galvanized metal, grader, grain tank, granary, land, metal, pipe, pit, plant, rebar, sky, slings, stairs, steel grating, summer, suspension bridge, the connection of bolts, tower, trees, trench, weld bolts, welded beams, welded fittings,