... HTD Types:3M,5M,8M,14M Types:T2.5,T5,T10,T20 Bore types: SB,TB,QD Timing pully British Types ... HTD Types:3M,5M,8M,14M Types:T2.5,T5,T10,T20 Bore types: SB,TB,QDTiming pullyBritish Types: MXL,XL ... ,XH,XXHHTD Types:3M,5M,8M,14MTypes:T2.5,T5,T10,T20Bore types: SB,TB,QDFeatures:1. Teeth Type: MXL,XL ... SO ON2. Metric System: T-type series(T2.5,T5,T10,T20)3. HTD type(3M,5M,8M,14M)4. STPD ...