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4' x 4' Feet CNC Router Kit 16mm Rail Guideway System and Ball Screws XYZ Travel 48" x 48" x 10" Inch – VXB Ball Bearings
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Mssoomm Linear Rail Shaft Guide and Linear Bearing Slide Block, 2Pcs SBR12-5.91 inch / 150mm Rails +4Pcs SBR12UU Blocks with End Stops to Choose for CNC Router Machine and 3D Printer: Amazon.com:
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