... ,ss316 railway precise precision casting machine parts with sand blasting Specifications: 1 OEM central machinery parts according to ... lathe and cncmachines, suitable for electric products, automatic 12 Free Samples CNC milling and turning, grinding, honing, lapping, ... Terms/Lead time):Materials:Stainless SteelProcessCNC milling and turning,drilling,grindingTolerance:0.005mm~40mmSurface Roughness Ra0. ...