general mechanical parts Timing belt pulley, clamping elements, flexible couplings, gears,torque limiters professional manufacturer for general mechanical parts for many years, exporting to Europe, North America, and developed countries in Southeast Asia. Reach Jiayuan Timing Belt Pulley specifications:1.Straight-bore: MXL,XL,L,H,T2.5,T5,T10,AT5,AT10,3M,5M,8M,14M;2.Taper-bore: L,H,XH,5M,8M,14M;3. ...