High precision V-Belt pulley 1.Variable speed pulleys 2.Conveyor belt pulleys 3.Taper lock pulleys High precision V-Belt pulley 1) Series:SPA,SPB ... ,SPC,SPZ2) Surface treatment : black oxide,Phosphating.3) Material: cast iron 4)Pulley by the ... goods, delivery speed,high precision.6)Groove:1-57)V-belt pulley with taper lock bush. High precision V ...