... railway precise precision casting machine parts with sand blasting 1OEM central machinery parts 2CNC lathe 3CE, ss304 ... ss316 railway precise precision casting machine parts with sand blasting Specifications: 1 OEM central machinery parts according to ... 12 Free Samples CNC milling and turning, grinding, honing, lapping, broaching, and other secondary machiningHeat treatment: annealing, normalizing, ...