|
1521 -
|
|
General Contractors-Single-Family Houses
|
|
1522 -
|
General Contractors-Residential Buildings, Other Than Single-Family
|
|
1541 -
|
General Contractors-Industrial Buildings and Warehouses
|
|
1542 -
|
General Contractors-Nonresidential Buildings, Other than Industrial Buildings and Warehouses
|
|
1731 -
|
Electrical Work
|
|
1799 -
|
Special Trade Contractors, Not Elsewhere Classified
|
|
3612 -
|
Power, Distribution, and Specialty Transformers
|
|
3613 -
|
Switchgear and Switchboard Apparatus
|
|
3621 -
|
Motors and Generators
|
|
3625 -
|
Relays and Industrial Controls
|
|
3629 -
|
Electrical Industrial Apparatus, Not Elsewhere Classified
|
|
3641 -
|
Electric Lamp Bulbs and Tubes
|
|
3643 -
|
Current-Carrying Wiring Devices
|
|
3644 -
|
Noncurrent-Carrying Wiring Devices
|
|
3645 -
|
Residential Electric Lighting Fixtures
|
|
3646 -
|
Commercial, Industrial, and Institutional Electric Lighting Fixtures
|
|
3648 -
|
Lighting Equipment, Not Elsewhere Classified
|
|
3651 -
|
Household Audio and Video Equipment
|
|
3669 -
|
Communications Equipment, Not Elsewhere Classified
|