Ключевые слова: advice, background, blue, branches, building, building site, cable ties, caution, circle, closeup, command, construction, construction site, danger, exclamation, exclamation mark, fence, hanging, hanging sign, hazard, hazardous, hung, information, keep out, keep out sign, lettering, notice, order, perimeter, perimeter fence, safety, security, selective focus, sign, signage, signboard, site, steel, suspended, symbol, text, tree, tree branches, trees, warning, white, wire, wire fence,