Smoke-free coal burning on a home fire. This is coal which has been treated by low-temperature carbonisation,removing the parts of coal that create smoke. This makes it suitable for use on household fires | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Molloy, Cordelia |
Bildgröße: | 3764 px × 2799 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |