we can provide the material CNC mill part :Aluminum alloy: 2024, 5052, 6061, 6063, 6082, 7075.Copper alloy: brass, bronze, BeCu, pure copper.Special alloy: TA2, TC4, 4J29 (KOVAR), 4J36 (INVAR), high temperature alloy (INCONEL 718, 625).Stainless steel: sus303, sus304, sus316, sus420, sus440c, sus630.Engineering plastics: PP, PVC, PI, POM, PTFE, PEEK.all the CNC mill machining part …