... metallographic analysis. 4>After FQC,we pack goods carefully. Shaft DetailsMaterial:carbon steel,stainless steel,copper, beryllium copper, brass, bronze, OFHC, free ... L ± 0.01mmRa : 0.8mmI.D. 0.25mmShaft---Spline stainless shaft,steel shaft,spline shaft,shaft Basic process:1.the shafts are made by customized ...