2656 Sanitary Food Containers, Except Folding Establishments primarily engaged in manufacturing nonfolding food containers from special foodboard. Important products of this industry include fluid milk containers, round nested food containers, paper cups for hot or cold drinks, and stamped plates, dishes, spoons, and similar products. Establishments primarily engaged in manufacturing similar items of plastics materials are classified in industry group 308 and those making folding sanitary cartons are classified in industry 2657.