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 Confezione, Faber-Castell, Pitt |
| Derwent, Charcoal XL Blocks |
| Derwent, Graphite XL Blocks |
| Derwent, Graphitint XL Blocks |
| Derwent, Inktense XL Blocks |
| Derwent, Tinted Charcoal XL Blocks |
| Faber-Castell, Pitt Pastel |
| Fusaggine |
| GR, Fusaggine |
| Stabilo, Carbothello |
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