... machinery parts 2CNC lathe 3CE, ss304,ss316 railway precise precision casting machine parts with sand blasting Specifications: 1 OEM central machinery parts ... secondary machiningHeat treatment: annealing, normalizing, tempering, nitriding, carbonitriding, carburizing, and induction hardening Surface treatment: plating, coating, phosphate, anodizing, and CVD/PVD ...