Poutre inférieur gauche (prolongée) Lien
De Open Source Ecologie
- http://wiki.ose.la/index.php/Poutre_Inf%C3%A9rieure_Gauche_(prolong%C3%A9e)
- https://cad.onshape.com/documents/bb0de5916f74371dbccaabd5/w/f1e791755a8669fa79476c57/e/0f89747e6d2802591a608976
- https://cad.onshape.com/documents/bb0de5916f74371dbccaabd5/w/f1e791755a8669fa79476c57/e/6286065d017df8d336cfa43c
- https://drive.google.com/drive/folders/0B6kVBfERu9dEZUNZVjhHYVBOVjg
