1.Material: Copper CuZn39Pb3 according to International Standards ( SAE, DIN, NF, JIS, BS, AISI ).

2.Diameter of shafts: <=30 mm

3.Straightness: 0.003mm/100mm

4.Surface Roughness: Ra 0.001mm

5.Salt spray test, heat treatment and other surface treatment available.

6.Equipment: CNC lathe, Centerless Grinder, Cylindrical Grinder, Roundness Tester, Ra-testing Instrument, Projector, Runout Tester