We offer timing belt pulley. 2. supply characteristic 1. general must according to drawing production, also can according to the standard mass production. 2. for 45 # steel alloy cast iron nylon and so on the different materials 3. material & characteristicmaterial selection general with carbon steel is given priority to, also can according to customers require the use of aluminum alloy copper nylon materials processing; belt wheel diameter such as more than 250 mm, generally uses the cast iron material