SK平坦的直角尺平面scoya等于JIS 1级，硬化300mm 钢形DD类型（硬化）300mm DD-F300

Length piece length (mm): 300
Bottom length (mm): 200
Thickness (mm): 6
Set angle (mm): ±0.025
Hardening hardness (HV): 450 or more
Pole length (mm): 300
Body length (mm): 200
Width (mm): 30
Thickness (mm): 6
Accuracy: Squareness (mm): ±0.025
Shape: Flat type
Nominal dimensions (mm): 300
Length piece length (mm): 300
Bottom length (mm): 200
Thickness (mm): 6
Set of the right angle (mm): ±0.025
Hardening hardness （HV）：450或更多

主体：机械结构的碳钢

660g

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