aluminium extrusion 20x40 20x60 | 3D CAD Model Library | GrabCAD
8020, 3034-Lite, 15 Series 3" x 0.75" Aluminum T-Slot Extrusion x 60" Long T Slotted Extruded 80/20 Profile - Shelving Hardware - Amazon.com
V-Slot 20x60 Linear Rail Aluminum Extrusion Profile
8020, 1010, 10 Series 1 Inch x 1 Inch T-Slotted Aluminum Extrusion DIY Extruded Linear Slot Bar Rail 80/20 (12" Long, Black Anodize): Amazon.com: Industrial & Scientific