... .Color:Sliver 2.Material:45#Steel, Aluminum Alloys 3.Type:Trapezoid tooth,T synchronization ,HTD(STD)synchronization Timing Belt Pully Specification:Trapezoid ... tooth MXL,XL,L,H,XH,XXH T synchronization pulleys T2.5,T5,T10,T20,AT5,AT10, ... drawing production.Characteristics: 1.Convenience in maintenance and the cost is low 2.Accurate and constant ratio, can work without sliding ...