BS 852-1939 标准详情
- 标准号:BS 852-1939
- 中文标题:刃口平尺规范
- 英文标题:Specification for toolmakers' straightedges
- 标准类别:英国标准
- 发布日期:1939-06-19
Straightedges of short length for very accurate work, having one working edge which is bevelled and very slightly rounded off ('knife-edge'). Material, general features, finish, accuracy, handles, glass test plate, case, packing, marking.
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