| Chapter Code | Chapter Description |
|---|
| 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 |
| 73041910 | OTHER : TUBES AND PIPES |
| 73030010 | TUBES, PIPES AND HOLLOW PROFILES, OF CAST IRON : RAIN WATER PIPE |
| 73043139 | ABOVE 219.1 MM DIAMETER : OTHER |
| 73043131 | ABOVE 219.1 MM DIAMETER : OF IRON |
| 73043129 | ABOVE 114.3 MM BUT UP TO 219.1 MM OUTER DIAMETER : OTHER |