钢材类
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轴承钢
BEARING STEEL
Specification:

Hot-Rolled Round Bar:φ12~130mm
Forged Round Bar : φ60~700mm
Forged Square Bar: 602~7002mm
Cold Drawn Bar & Coil: φ6.5~40mm

Standard:YJZ84 YB9-68 GCr6,GCr9,GCr15,9Cr18Mo Cr4Mo4V