1)investment casting 2)precision/lost wax casting 3)CNC,CMM 4)ISO 9001:2000, ... for example CuZn39Pb2,CuZn40,CuSn7ZnPb,CuAl10Fe3,C37700,C84400,C83600,C94300,C95500,CuSn12Ni2,HPb59-1,HPb58-3 etc.. Casting:Silica sol lost wax casting(precision casting ... ,investment casting),Sand casting Machining:CNC,four-axis milling center ...