From Wikimedia Commons, the free media repository
This category has the following 9 subcategories, out of 9 total.
- ► Grube Carl (6 F)
- ► Briquette factories in the Rhenish lignite mining area (3 C, 4 F)
Media in category "Briquette factories"
The following 15 files are in this category, out of 15 total.