... or die casting aluminum ISO certificated MOQ:1000 Aluminum cooling fin ,CPU heatsink ,radiator, CNC machining , CNC turning , CNC ... function ),Grinding machines(including Internal, External and Centerless grinding machine),Wire cutting machines, and other Precision CNC machining machines.2 ... 0.002Wire-Cutting 0.002 machining part aluminum cooling fin CPU heatsink aluminum ,aluminum radiator