... requirements:sample or dwg(drawing) Process availablesilica sol and sodium silicate (soluble glass)Material availablestainless steel, carbon ... steel, Alloy Steel, WCB, Tool Steel and etc.Weight10g-200kgAccuracyclass CT4 CT7Surface roughnessup to Ra1.6 ... :anneal, quenching, normalizing, carburizing,polishing, platingMachiningCNC and NC machining, turning, milling, drilling, boring, threading ...