 |
| |||
| scrap material (Abfall); potential recyclable; existing chemical (ChemG) | |||
| salvage; junk | |||
| utility waste | |||
| existing substance | |||
| |||
| existing chemicals; existing substances; legacy materials | |||
| Altstoff: 15 a las frases, 6 temas |
| Ambiente | 6 |
| Ciencias naturales | 1 |
| Construcción | 4 |
| General | 2 |
| Microsoft | 1 |
| Tecnología de la información | 1 |