SK，直边，相当于JISB等级，未淬火，1500mm 铁轨类型直边（A级） R-B1500

Nominal dimension (mm): 1500
Length (mm): 1500
Width (mm): 50
Straightness (μm): 34
Type: Hardened product
Shape: Work type
Height (mm): 90
JIS grade: Equivalent to grade B
Nominal dimension (mm): 1500

主体：机械结构的碳钢

32000g

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