30 Series T-Slot Aluminum Profiles, Aluminum Structural Framing Supplier
Amazon.com: 10PCS 39.4inch T Slot 2020 Aluminum Extrusion Profile (1000mm), European Standard Aluminum Linear Rail–Easy to Use for 3D Printer, CNC DIY, Workbenches, Brackets, Furniture and More : Industrial & Scientific
CNC 2020 Aluminum Profile T Slot Extrusion Anodized EU Standard 100 200 300 400 500 600 800 1000mm Linear Rail For 3D Printer - AliExpress