Making phenol-formaldehyde,commercially known as Bakelite (3rd in a series of 4) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 2550 px × 3848 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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