... XXH HTD Types:3M,5M,8M,14M Types:T2.5,T5,T10,T20 Bore types: SB,TB,QDTiming pullyBritish Types ... H,XH,XXHHTD Types:3M,5M,8M,14MTypes:T2.5,T5,T10,T20Bore types: SB,TB,QDFeatures:1. Teeth Type ... MXL,XL,L,H,X6. Material:1045 carbon steel, aluminum alloy frequently used,brass and nylon available.7. Surface ... ,anodize,zinc-plating8. Tolerance:conform to customers requirement9. OEM/ODM service:offered