Cement works. Smoke coming from the chimneys of a cement works. Cements are commonly made by heating limestone and clay together at 1700 degrees Celsius. Gypsum is then ground into this product. Photographed in Alberta in Canada | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nunuk, David |
Bildgröße: | 3677 px × 2526 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |