SK，直边，相当于JISB等级，硬化，3000mm 铁轨类型直边（A级，硬化） R-B3000H

Nominal dimensions (mm): 3000
Kinting hardness (HV): 490-620
Length (mm): 3000
Width (mm): 50
Straightness (μm): 64
Type: Non-hardened product
Shape: Work type
Height (mm): 150
JIS grade: Equivalent to grade B
名义维度（MM）：3000
Kinting Hartness（HV）：490-620

主体：机械结构的碳钢

99000g

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