Ключевые слова: assembly, backgrounds, bulletproof, closeup, conveyor, door, doubleglazed, doubleglazed windows, factory, focus, frosted, glass, glasses, gloves, gluing, hand, impermeability, industrial, industry, insulated, making, manufacture, manufacturing, material, production, pvc, sealed, staff, tempered, tempering, tightness, tint, translucent, transparent, units, watertightness, window, windows, working, working man, workman, workshop,