| 333 |
Petroleum oils and oils obtained from bituminous minerals, crude |
| 334 |
Petroleum oils and oils obtained from bituminous minerals (other than crude); preparations, n.e.s., containing by weight 70% or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparation... |
| 335 |
Residual petroleum products, n.e.s., and related materials |