3D Printer Ball Bearing,10 Pcs Metal U-Groove Sealed Guide Wheel Pulley Rail Ball Bearing U604ZZ 4 * 13 * 4mm High Precision, Smooth, Low Noise(10pcs)

描述

3D Printer Ball Bearing,10 Pcs Metal U-Groove Sealed Guide Wheel Pulley Rail Ball Bearing U604ZZ 4 * 13 * 4mm High Precision, Smooth, Low Noise(10pcs)