... XH, XXH HTD Types:3M,5M,8M,14M Types:T2.5,T5,T10,T20 Bore types: SB,TB,QD Timing ... ,L,H,XH,XXHHTD Types:3M,5M,8M,14MTypes:T2.5,T5,T10,T20Bore types: SB,TB,QDFeatures:1. Teeth ... 5M,S5M,S8M,S14M)5. The British System:MXL,XL,L,H,X6. Material:1045 carbon steel, aluminum alloy frequently used,brass ... plating8. Tolerance:conform to customers requirement9. OEM/ODM service:offered Aluminum timing pulley