Naics code Naics crossreference
327999 Manufacturing pottery, ceramics, and plumbing fixtures--are classified in Industry 327110, Pottery, Ceramics, and Plumbing Fixture Manufacturing
327999 Manufacturing clay building materials and refractories--are classified in Industry 327120, Clay Building Material and Refractories Manufacturing
327999 Manufacturing glass and glass products--are classified in Industry 32721, Glass and Glass Product Manufacturing
327999 Manufacturing cement--are classified in Industry 327310, Cement Manufacturing
327999 Mixing and delivering ready-mix concrete--are classified in Industry 327320, Ready-Mix Concrete Manufacturing
327999 Manufacturing concrete pipe, brick, and block--are classified in Industry 32733, Concrete Pipe, Brick, and Block Manufacturing
327999 Manufacturing concrete products (except pipe, brick, and block)--are classified in Industry 327390, Other Concrete Product Manufacturing
327999 Manufacturing lime--are classified in Industry 327410, Lime Manufacturing
327999 Manufacturing gypsum products--are classified in Industry 327420, Gypsum Product Manufacturing
327999 Manufacturing abrasives and abrasive products--are classified in Industry 327910, Abrasive Product Manufacturing