Ключевые слова: belt, bottle, business, cargo, closeup, construction, container, conveyor, dirty, environment, equipment, factory, finance, garbage, group, indoors, industry, iron, large, line, lot, machine, machinery, manufacturing, material, metal, objects, old, order, packaging, part, pollution, production, recycling, science, stack, steel, technology, tool, track, train, transportation, trash, tube, warehouse, work, working, workshop,