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Primary NAICS Code | Primary Industry | Working Business Activity |
423730 | Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers |
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NAICS Code 2 | Industry 2 | Working Business Activity |
425120 | Wholesale Trade Agents and Brokers |
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NAICS Code 3 | Industry 3 | Working Business Activity |
54162 | Environmental Consulting Services |
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NAICS Code 4 | Industry 4 | Working Business Activity |
811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance |
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NAICS Code 5 | Industry 5 | Working Business Activity |
238220 | Plumbing, Heating, and Air-Conditioning Contractors |
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Additional NAICS Codes |
Sale of air pollution control equipment and replacement parts |
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