Slotted Aluminum Extrusion - 20mm x 20mm - 610mm long : ID 1221 : $7.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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1PC 2020 T-Slot Aluminum Extrusion Profile For CNC 3D Printer 20mm x 20mm | eBay
Amazon.com: 20mm x 20mm T-Slot Aluminum Profile - SANTIE 1 Piece Cut to Length 1300mm, Silver 2020 Extrusion with European Standard Linear Rail : Industrial & Scientific
Amazon.com: Stand Tools 20 Series, 20 mm x 20 mm T-Slot Aluminum Extrusion x 800 mm Pack of 4 : Industrial & Scientific
Amazon.com: 80/20 Inc., 20-2040, 20 Series 20mm x 40mm Extrusion x 1830mm : Industrial & Scientific
Slotted Aluminum Extrusion - 20mm x 20mm - 610mm long : ID 1221 : $7.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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EXM-2020-BLACK – 20mm x 20mm BLACK Smooth T-Slotted Aluminum Extrusion | TNUTZ
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Amazon.com: Stand Tools 20 Series, 20 mm x 20 mm T-Slot Aluminum Extrusion x 800 mm Pack of 4 : Industrial & Scientific
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Amazon.com: 80/20 Inc., 20-2020, 20 Series 20mm x 20mm Extrusion x 610mm : Industrial & Scientific
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Aluminum Extrusion (20mm x 20mm) - Black Anodize - M5 Tapped – Inventables, Inc.