2Pcs Linear Rail Shaft OD8/10/12mm 300-800mm Optical Axis 4Pcs SCS8/10/12UU Linear Bearing Blocks 4Pcs SK8/10/12 Bearing Support

2Pcs Linear Rail Shaft OD8/10/12mm 300-800mm Optical Axis 4Pcs SCS8/10/12UU Linear Bearing Blocks 4Pcs SK8/10/12 Bearing Support

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