10PCS Dia 3/4/5/6/8mm Mini Brass Pulley Center Hole Diameter 1mm Single Groove Roller Pulleys Thickness 1.3/1.5/1.7/2.0/2.3mm

10PCS Dia 3/4/5/6/8mm Mini Brass Pulley Center Hole Diameter 1mm Single Groove Roller Pulleys Thickness 1.3/1.5/1.7/2.0/2.3mm

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