... , turning, milling, drilling, boring, threading, grinding machines and test facilityCertificationObtainISO9001:2008Quality System Certified and CE/PED ... for after-pouring analysis. Sand Shell RemovalMake the casting free from sand by shaking. CuttingOxyacetylene cut ... surface with grinding wheel. Heat treatmentHeat treat the casting by nomalizing, annealing, quench+tempering, induction quenching, ...