AS 3818.4-2003 标准详情
- 标准号:AS 3818.4-2003
- 中文标题:给水用1/2 In.(12 mm)到2 In.(50 mm)聚乙烯-铝-聚乙烯和交联聚乙烯-铝-交联聚乙烯复合压力管
- 英文标题:timber - heavy structural products - visually graded - cross-arms for overhead lines
- 标准类别:澳大利亚国家标准AS
- 发布日期:2003-09-11
Specifies visual grading rules and dimensional tolerances for timber cross-arms intended for use as supports for overhead utility service cables. Two grades of cross-arms are described and an optional top surface grade is also given. F-grades are giv
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