... Reach Jiayuan Synchronous Drive : 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.Timing pulley bar: MXL,XL ... : Anodic oxidation, Blackening, Zinc Plating,Phosphatization;6.Teeth Number from 9 to 216; O.D. from 10mm to 1000mm; Advantages:1 ... load on it's suppor Synchronous Drive MXL,XL,L,H