... ; complex geometry; material of poor machinability; free&quick prototyping,5 Axis CNC Machining Parts A.Advantages:1. We are factory ... ) 4. Offering free and quick prototyping ( normally 1 week) 5. Sharp on time delivery6. Top quality guaranteed by skilled workers, managing ... ), C28000 (CuZn40) etc.4. Bronze: C51000, C52100, C54400, etc.5. Iron: 1213, 12L14, 1215 etc.6. Aluminum: Al6061, Al6063, AL7075 ...