1)copper cnc machining parts 2)CNC,CMM 3)ISO9001:2000 certified,ERP 4)weight:5g-20kg,dimension:5x5-200x200mm 5)Ten-year OEM CNC machining parts Material and equipments: Material: various kinds of brass,bronze and other copper alloys,for example CuZn39Pb2,CuZn40,CuSn7ZnPb,CuAl10Fe3,C37700,C84400,C83600,C94300,C95500,CuSn12Ni2,HPb59-1,HPb58-3 etc. Casting:Silica sol lost wax casting(precision ...