NF P22-331:NA
欧洲规范3:钢结构设计 - 第3-1部分:塔、桅杆和烟囱 - 塔和桅杆 - NF EN 1993-3-1的国家附录
Eurocode 3: Design of steel structures - Part 3-1: Towers, masts and chimneys - Towers and masts - National Annex to NF EN 1993-3-1
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Eurocode 3: Design of steel structures - Part 3-1: Towers, masts and chimneys - Towers and masts - National Annex to NF EN 1993-3-1