aluminium bicycle rim profile Material:6063,6061,T5,T6 Mill finish,anodized, ... Cut,punch,drill ISO9001,SGS,ROHS aluminium extrusion bicycle rim profile 1. Material: 6063,6005,60612. Temper: T5 or T63 ... etc.6. Various in styles and sizes: A). Aluminum alloy bars: ranging from 1000 series to 7000 series, normal ... service available, customized design available aluminium extrusion bicycle rim profile