Dimension Stone Mining and Quarrying, Masonry Contractors, Tile and Terrazzo Contractors, Vitreous China, Fine Earthenware, and Other Pottery Product Manufacturing This U.S. industry compris, Clay Refractory Manufacturing

Kaolin and Ball Clay Mining, Clay and Ceramic and Refractory Minerals Mining, Vitreous China, Fine Earthenware, and Other Pottery Product Manufacturing This U.S. industry compris, Other Structural Clay Product Manufacturing, Clay Refractory Manufacturing

Plastics Material and Resin Manufacturing, Other Structural Clay Product Manufacturing, Clay Refractory Manufacturing, Nonclay Refractory Manufacturing, Abrasive Product Manufacturing