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steel
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HIGH SPEED TOOL STEEL
Specification:

Hot-Rolled Round Bar:φ20~100mm
Forged Round Bar : φ60~250mm
Forged Square Bar:602~2502mm

Standard:

GB9943-88 YB12-17. W18Cr4V W6Mo5Cr4V2
CW6Mo5Cr4V2 W6Mo5Cr4V3 W2Mo9Cr4V2