... turning,cold drawing,modulating,heat treatment.forged steel round bar,forged blocks by Vaccum degassed, fine grain size, forged ratio, keep ultrasonic ... test. forged steel round bar, forged blocksby Vaccum degassed, fine grain size, forged ratio ... : 100-500, length 2.0-5.8m.main tool steel/mould steel: 1.2711,1.2738,1.2311,1.2714, and ...