... ,1JO915 137,6XO915 135,6QO915 137,3M5T-14452-AA/BA/CA,3M5T-14451-AA/BA,3AO915 135, 8EO915 135Material:Copper(CuZn39Pb2)Treatment ... stand GDF-3 1 3.0 Acceptable Vickers hardness tester HV-10 1 3.0 Acceptable Production Flow: 1.Raw material 2 ... .Precision machining 3 8.Precision machining 4 9.CNC process 10.Slow precision wire-cut process 11.Assembling 12.Packaging