HTD Type Rubber Timing Belt Standard HTD-2M, Piych: 2mm Material: Rubber lower noise, high efficient HTD Type Rubber Timing Belt Standard HTD-2M, Piych: 2mm Material: Rubber Advantages ... ,XH,XXH,T2.5,T5/AT5,T10/AT10,T20/AT20.2M/S2M/RP2M,3M/S3M/RP3M,S4.5M,5M/S5M/RP5M ...