... -wedge belts,flat belts,automobile synchronous belts,conveying belt and pulleys goods with various specifications.Here is the available type for ... your reference:MXL,XL,L,H,XH,T5,T10,HTD3M,HTD5M ... iron,aluminum alloy,zinc alloy,plastic,nylon,etcT type timing belt pulley for power transmission.Material for synchronous pulleys can be ...