... 3.Good quality raw material, precision machining Timing pulley,timing belt, pulley, belt pulley,timing belt pulley, synchronous pulley, synchronized pulley, ... , v-belt pulley, double-sided timing belts,oem pulley,timing belt tensioner, tensioner bearing, timing tensioner, steel sheave, conveyor pulley are ... is larger than 250 mm, iron is used.The pitch&tooth type of double sided timing belt is same ...