... ,CNC copper fittings,Precision CNC machining parts Custom Precision CNC machiningPrecision CNC machining parts,CNC lathe milling,Ato lathe processing,CNC aluminum parts,CNC brass parts,CNC copper fittingsPrecision CNC ... ), C27200(CuZn37), C28000(CuZn40)4. Bronze: C51000, C52100, C54400, etc.5. Iron: 1213, 12L14,1215 etc.6. Aluminum: Al6061, Al6063,AL7075 ...