| 213113 |
Mine shaft sinking services for coal mining on a contract basis |
| 213113 |
Mine tunneling services for coal mining on a contract basis |
| 213113 |
Overburden removal for coal mining on a contract basis |
| 213113 |
Prospect and test drilling services for coal mining on contract basis |
| 213113 |
Pumping or draining coal mines on a contract basis |
| 213113 |
Removal of overburden for coal mining on a contract basis |
| 213113 |
Shaft sinking for coal mines on a contract basis |
| 213113 |
Sinking shafts for coal mining on a contract basis |
| 213113 |
Stripping overburden services for coal mining on a contract basis |
| 213113 |
Tunneling services for coal mining on a contract basis |