| 22101900 |
Building construction machinery and accessories |
| 26101500 |
Engines |
| 26111600 |
Power generators |
| 26121500 |
Electrical wire |
| 26121600 |
Electrical cable and accessories |
| 26121700 |
Wiring harness |
| 26131800 |
Power generation control equipment |
| 30191700 |
Construction sheds and trailers |
| 30191800 |
Temporary construction and maintenance support equipment and materials |
| 39121000 |
Power conditioning equipment |
| 39121100 |
Distribution and control centers and accessories |
| 40101500 |
Ventilation |
| 40101600 |
Air circulation and parts and accessories |
| 40101700 |
Cooling equipment and parts and accessories |
| 40101800 |
Heating equipment and parts and accessories |
| 40101900 |
Humidity control |
| 40102000 |
Boilers |
| 40102100 |
Fireplaces and accessories |
| 40141600 |
Valves |
| 40141700 |
Hardware and fittings |
| 40141900 |
Ducts |
| 40142000 |
Hoses |
| 40142200 |
Fluid and gas regulators |
| 40142500 |
Traps and strainers |
| 71161400 |
Well construction management services |
| 72101500 |
Building maintenance and repair services |
| 72111000 |
Single family dwelling construction services |
| 72111100 |
Multiple unit dwelling construction services |
| 72121000 |
New industrial building and warehouse construction services |
| 72121100 |
Commercial and office building construction services |
| 72121200 |
Agricultural building construction services |
| 72121300 |
Automotive garage and service station construction services |
| 72121400 |
Specialized public building construction services |
| 72121500 |
Industrial plant construction services |
| 72141000 |
Highway and road construction services |
| 72141100 |
Infrastructure building and surfacing and paving services |
| 72141200 |
Marine construction services |
| 72141400 |
Detention facility construction and repair services |
| 72141600 |
Mass transit system construction services |
| 72141700 |
Construction machinery and equipment rental or leasing services |
| 72151000 |
Boiler and furnace construction and maintenance services |
| 72151100 |
Plumbing construction services |
| 72151200 |
Heating and cooling and air conditioning HVAC construction and maintenance services |
| 72151400 |
Wall covering construction services |
| 72151900 |
Masonry and stonework services |
| 72152300 |
Carpentry services |
| 72152600 |
Roofing and siding and sheet metal services |
| 72152700 |
Concrete installation and repair services |
| 72152900 |
Structural steel erection services |
| 72153100 |
Athletic and recreational facility construction services |
| 72153700 |
Parking facility construction and equipment installation and maintenance and repair services |
| 72154600 |
Animal habitat and enclosure construction and maintenance services |
| 73101600 |
Chemicals and fertilizers production |
| 80131500 |
Lease and rental of property or building |
| 80131600 |
Sale of property and building |
| 80131800 |
Real estate management services |
| 95121800 |
Utility buildings and structures |
