Article: tool steel flat bar Grade: SKD11, SKD61, etc. as customized Size: 20-800mm Length: 1~6m as customized with UT Article: SKD61, SKD11, Cr12Mo1V1, Tool steel flat bar Grade ... key industries of machine, locomotive, ship making, oil, chemical engineering, electric power, automobile, coal feeder, aviation, space flight, tool and new steel varieties ...