Ключевые слова: activity, applying, building, building components, building construction, cement, civil engineering, compound, concrete, construction, construction equipment, contractor, finishing, flooring, house construction, improvement, industrial, industry, laborer, level, leveling, levelling, manual, masonry, material, mortar, notched trowel, pouring, pump, screed, self leveling, shovel, site, smooth, smoothing, structure, trowel, uneven, work, worker,