This U.S. industry comprises establishments primarily engaged in converting paperboard (except corrugated) into folding paperboard boxes without manufacturing paper and paperboard. Cross-References. Establishments primarily engaged in-- ? Manufacturing setup paperboard boxes (except corrugated)--are classified in U.S. Industry 322213, Setup Paperboard Box Manufacturing; ? Manufacturing corrugated and solid fiber boxes--are classified in U.S. Industry 322211, Corrugated and Solid Fiber Box Manufacturing; ? Manufacturing paperboard and converting paperboard into containers--are classified in Industry 322130, Paperboard Mills; ? Manufacturing paper and converting paper into containers--are classified in Industry 32212, Paper Mills; ? Manufacturing milk cartons--are classified in U.S. Industry 322215, Nonfolding Sanitary Food Container Manufacturing; and ? Manufacturing paper bags--are classified in Industry 32222, Paper Bag and Coated and Treated Paper Manufacturing.