Manufacturing US This U.S. industry comprises establishments primarily engaged in manufacturing vitreous china plumbing fixtures and china and earthenware bathroom accessories, such as faucet handles, towel bars, and soap dishes. Cross-References. Establishments primarily engaged in-- ? Manufacturing enameled iron and steel plumbing fixtures--are classified in U.S. Industry 332998, Enameled Iron and Metal Sanitary Ware Manufacturing; ? Manufacturing metal bathroom accessories--are classified in Subsector 332, Fabricated Metal Product Manufacturing; ? Manufacturing plastics bathroom accessories--are classified in U.S. Industry 326199, All Other Plastics Product Manufacturing; ? Manufacturing cultured marble and other plastics plumbing fixtures--are classified in U.S. Industry 326191, Plastics Plumbing Fixture Manufacturing; and ? Manufacturing china and earthenware products (except bathroom fixtures and accessories)--are classified in U.S. Industry 327112, Vitreous China, Fine Earthenware, and Other Pottery Product Manufacturing.