Article: tool steel flat bar Grade: SKD11, SKD61, etc. as customized ... 6m as customized with UT Article: SKD61, SKD11, Cr12Mo1V1, Tool steel flat bar Grade:SKD61, SKD11, Cr12Mo1V1 etc. as customizedSize:20 ... Electric arc furnace meltingrefining furnacevacuum treatment furnacecast ingotsteel ingot annealheatinghigh-speed forging, refining forgingannel, retarded cooling, air coolingquenching and ...