Un vélo, avec quoi c'est fait ?
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En déplaçant le pointeur de la souris sur le VTT, tu vas découvrir des matériaux utilisés pour la fabrication de cet objet technique. Pour en savoir plus sur ces matériaux, je t'invite à rechercher des informations sur un site internet. Il est difficile de classer les matières plastiques parce qu'il y en a beaucoup et qu'elles ne se ressemblent pas toutes. |
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