made of Alum2024-T4,ASTM 6061-T6, 2011-T3, 7075-T6, Alum6061-T6,etc. Die Aluminum Casting or CNC parts 1. ... supplier;8. All the screw holesis are requested tight tolerance of 0 and -0.02mm ;9. Custom parts is completely ... and requested quantity;Our production process include sand casting, investment casting, lost foam casting, die casting, v-process casting, closed & open die forging, and permanent ...