ASTM B9-1990(2003) 标准详情
- 标准号:ASTM B9-1990(2003)
- 中文标题:青铜制电车架空线的标准规范
- 英文标题:Standard Specification for Bronze Trolley Wire
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1990
1.1 This specification covers round, grooved, and figure-9 deep-section grooved bronze trolley wire. 1.2 The bronze trolley wire may be made in any of the three distinct alloys indicated in accordance with their increasing conductivities: Alloy 40,
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