... , 7075-T6, Alum6061-T6,etc. Die Aluminum Casting or CNC parts 1. cnc machined part 2. tolerance on all the screw holes: 0 ... & open die forging, and permanent mold casting. Such as pump parts,manhole covers and frames, handwheel, valve, iron grating, flange, street ... bollards, drill point for piling and other industry machinery parts etc. Our material standard accords with DIN, JIS, ASTM, BS ...