| 212311 |
Establishments primarily engaged in dressing dimension stone and manufacturing stone products are classified in U.S. Industry 327991, Cut Stone and Stone Product Manufacturing. |
| 212312 |
Producing lime--are classified in Industry 327410, Lime Manufacturing |
| 212312 |
Mining or quarrying bituminous limestone--are classified in U.S. Industry 212319, Other Crushed and Broken Stone Mining and Quarrying. |
| 212319 |
Mining, quarrying, or beneficiating crushed and broken limestone--are classified in U.S. Industry 212312, Crushed and Broken Limestone Mining and Quarrying |
| 212319 |
Mining, quarrying, or beneficiating crushed and broken granite--are classified in U.S. Industry 212313, Crushed and Broken Granite Mining and Quarrying. |
| 21232 |
Manufacturing ready-mix concrete--are classified in Industry 32732, Ready-Mix Concrete Manufacturing |
| 21232 |
Calcining, dead burning, or otherwise processing (i.e., beyond basic preparation) clay or ceramic and refractory minerals--are classified in Industry 32799, All Other Nonmetallic Mineral Product Manufacturing |
| 21232 |
Shaping, molding, baking, burning, or hardening nonclay ceramics, clay and nonclay refractories, and structural clay products--are classified in Industry 32712, Clay Building Material and Refractories Manufacturing |
| 21232 |
Shaping, molding, glazing, and firing pottery, ceramics, and plumbing fixtures--are classified in Industry 32711, Pottery, Ceramics, and Plumbing Fixture Manufacturing |
| 21232 |
Oil shale mining and/or beneficiating--are classified in Industry 21112, Crude Petroleum Extraction |