... equipment: CNC turning lathe, Grinding machine, Milling Machine, CNC machining center, Spark machine, cutting-off machine, card punch, EDM Machine, Wire-Cutting Machine, and some ... dimension tolerance of machining of customers' requirement. 2, Surface roughness: Ra 0.8-3.2 3, Weight: ... Ranging from 0.50g to 10, 000kg 4, Surface finish: Polishing, oiled(rust-prevented), zinc-plated, chrome ...