Extrusion. This smooth, fractional extrusion comes with two slots on each 2" face and four slots on each 4" face. Mar 20, - The solution - 80/20 T-slots (extruded aluminum)! aluminum extrusion t slot 20x80mm, Find Complete Details about aluminum extrusion t slot 20x80mm from [HOST] Ara - Learn about 80/20 t-slot profiles and parts, including fasteners, panels, casters, accessories, & more. Great for framing, storage, and much more. Slot opening 6mm. PennAir is a distributor of , providing Aluminum Extrusion, T-slot framing, Aluminum Profile systems and resources. Our easy to use and highly creative construction system provides a. All the material is slightly used; hence it will have light scratches. 80/20® is the leader in the modular T-slot aluminum framing industry. This item is heavy-duty (" x 3") in various lengths. As one of our smallest. Color: Aluminum clear anodized finish. This small metric extrusion comes with one open t-slot on each 20 millimeter face and two open t-slots on each 40 millimeter face. El armazón estructural con ranura en T es un sistema de armazón que consta de tramos de aluminio extruido cuadrado o rectangular, típicamente aleación de aluminio T5, con una ranura en T en la línea central de uno o más lados. .