ABB EASTERN REGION

Stone Mining and Quarrying

NAICS #21231 | This industry comprises (1) establishments primarily engaged in developing the mine site, mining or quarrying dimension stone (i.e., rough blocks and/or slabs of stone), or mining and quarrying crushed and broken stone and/or (2) preparation plants primarily engaged in beneficiating stone (e.g., crushing, grinding, washing, screening, pulverizing, and sizing). Producing lime--are classified in Industry 327410, Lime Manufacturing; and Quarrying and dressing dimension stone--are classified Industry 32799, All Other Nonmetallic Mineral Product Manufacturing.

Industrial Process Furnace and Oven Manufacturing

NAICS #333994 | This U.S. Industry comprises establishments primarily engaged in manufacturing industrial process furnaces, ovens, induction and dielectric heating equipment, and kilns (except cement, chemical, wood). Manufacturing bakery ovens--are classified in U.S. Industry 333294, Food Product Machinery Manufacturing; Manufacturing cement, wood, and chemical kilns--are classified in U.S. Industry 333298, All Other Industrial Machinery Manufacturing; Manufacturing cremating ovens--are classified in U.S. Industry 333999, All Other Miscellaneous General Purpose Machinery Manufacturing; and Manufacturing laboratory furnaces and ovens--are classified in U.S. Industry 339111, Laboratory Apparatus and Furniture Manufacturing.