| Chapter Code | Chapter Description |
|---|
| 73030030 | TUBES, PIPES AND HOLLOW PROFILES, OF CAST IRON : SPUN PIPE |
| 73042200 | CASING, TUBING AND DRILL PIPE, OF A KIND USED IN DRILLING FOR OIL OR GAS : DRILL PIPE OF STAINLESS STEEL |
| 73042310 | OTHER DRILL PIPE : OF IRON |
| 73043121 | ABOVE 114.3 MM BUT UP TO 219.1 MM OUTER DIAMETER : OF IRON |
| 73042400 | OTHER DRILL PIPE : OTHER, OF STAINLESS STEEL |
| 73042390 | OTHER DRILL PIPE : OTHER |
| 73043139 | ABOVE 219.1 MM DIAMETER : OTHER |
| 73043129 | ABOVE 114.3 MM BUT UP TO 219.1 MM OUTER DIAMETER : OTHER |