structural tube meaning in English

结构钢管
结构管材
结构用管

Standard specification for hot - formed welded and seamless carbon steel structural tubing
热成型焊接与无缝碳素钢结构管标准规范
Aerospace ; seamless structural tubes in steel and nickel alloys ; technical specification
航空航天.钢和镍合金无缝结构管材.技术规范
Standard specification for hot - formed welded and seamless high - strength low - alloy structural tubing
热塑焊接和无缝高强度低合金结构钢管的标准规范
Specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes
圆钢与型钢的冷变形焊接与无缝碳素钢结构管规范
Standard specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes
圆形与异型冷成型焊接与无缝碳素钢结构管标准规范

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