... part,metal machining part,precision parts,connector,joint,hardware,metal part,turning./drilling/milling/grind 1) ... engraving machine, common machines, laser engraving machines, metal injection machine6) Precision machining capability: a) Machine's rotating speed: 5,000rpm - 30 ... ,000rpm b) Machining precision tolerance: 0.005 - 0.01mm c) Roughness value: < Ra ...