MODEL RELEASED. Polythene tubing manufacture. The machine at bottom blows air into molten plastic to form a polythene tube. This is building grade polythene made from recycled plastic. It is coloured yellow to indicate that it is impermeable to carbon dioxide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / King-Holmes, James |
Bildgröße: | 4096 px × 5304 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |