Rubber vulcanization industry, 19th-century illustration. Vulcanization is the process where rubber is strengthened by adding sulphur. The process used here is a wet steam system. Illustration published in 1867. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Collection Abecasis |
Bildgröße: | 3461 px × 2760 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |