Ключевые слова: architecture, arm, boom, build, builder, bulgaria, business, casting, castinplace, cement, concrete, concreting, construction, equipment, filling, flats, formwork, foundation, hose, house, industrial, industry, job, labor, lorry, machine, machinery, metal, mixer, pipe, pour, pouring, process, pump, reach, scaffolding, steel, technology, truck, tube, vehicle, vibration, work,