| 29 |
Petroleum and Coal Products |
|
291 |
Petroleum Refining |
|
|
2911 |
Petroleum refining |
|
295 |
Asphalt Paving and Roofing
Materials |
|
|
2951 |
Asphalt paving mixtures and blocks |
|
|
2952 |
Asphalt felts and coatings |
|
299 |
Misc. Petroleum and Coal
Products |
|
|
2992 |
Lubricating oils and greases |
|
|
2999 |
Petroleum and coal products, nec |
