| 423320 |
Quarrying, dredging, and/or beneficiating construction sand and gravel--are classified in U.S. Industry 212321, Construction Sand and Gravel Mining. |
| 423330 |
Establishments primarily engaged in the merchant wholesale distribution of wood roofing and wood siding are classified in Industry 423310, Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers. |
| 423390 |
Merchant wholesale distribution of products of the primary metals industries--are classified in Industry 423510, Metal Service Centers and Other Metal Merchant Wholesalers |
| 423390 |
Merchant wholesale distribution of lumber; plywood; reconstituted wood fiber products; wood fencing; doors, windows, and their frames; wood roofing and wood siding other wood or metal millwork--are classified in Industry 423310, Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers |
| 423390 |
Merchant wholesale distribution of stone, cement, lime, construction sand and gravel; brick; asphalt and concrete mixtures (except ready-mix concrete)/or concrete, stone, and structural clay products--are classified in Industry 423320, Brick, Stone, and Related Construction Material Merchant Wholesalers |
| 423390 |
Merchant wholesale distribution of nonwood roofing and nonwood siding and insulation materials--are classified in Industry 423330, Roofing, Siding, and Insulation Material Merchant Wholesalers |
| 423390 |
Merchant wholesale distribution of electrical supplies and wiring supplies--are classified in Industry 423610, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers |
| 423390 |
Selling ready-mix concrete--are classified in Industry 327320, Ready-Mix Concrete Manufacturing. |
| 423410 |
Merchant wholesale distribution of household-type video cameras--are classified in Industry 423620, Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers |
| 423410 |
Merchant wholesale distribution of office equipment, such as photocopy and microfilm equipment--are classified in Industry 423420, Office Equipment Merchant Wholesalers |