aluminium bicycle rim profile Material:6063,6061,T5,T6 Mill finish,anodized,powder coated Cut,punch,drill ISO9001,SGS,ROHS aluminium extrusion ... bicycle rim profile 1. Material: 6063,6005,60612. Temper: T5 ... different requirements. 9. OEM service available, customized design available aluminium extrusion bicycle rim profile