This U.S. industry comprises establishments primarily engaged in manufacturing enameled iron and metal sanitary ware. Manufacturing plastics plumbing fixtures--are classified in U.S. Industry 326191, Plastics Plumbing Fixture Manufacturing; Manufacturing vitreous and semivitreous pottery sanitary ware--are classified in U.S. Industry 327111, Vitreous China Plumbing Fixture and China and Earthenware Bathroom Accessories Manufacturing; Manufacturing plastics portable chemical toilets--are classified in U.S. Industry 326199, All Other Plastics Product Manufacturing; and Manufacturing metal mechanically refrigerated drinking fountains--are classified in U.S. Industry 333415, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing.