SK正常直的边缘等效于JISA等级，未淬火，300mm 直边标准类型（A级） S-A300

Nominal dimension (mm): 300
Length (mm): 300
Width (mm): 35
Straightness (μm): 16
Type: Non-hardened item
Shape: Normal type
Height (mm): 5
JIS grade: A grade equivalent
Nominal dimension (mm): 300

主体：机械结构的碳钢

410g

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