ASTM A998 - A 998M - 18 (2024) 下水道及相关用途的工厂加工的波纹钢管的加强型接头的结果设计指南
ASTM A998/A998M-2024 Standard Practice for Structural Design of Reinforcements for Fittings in Factory—Made Corrugated Steel Pipe for Sewers and Other Applications 下水道及相关用途的工厂加工的波纹钢管的加强型接头的结果设计指南
2024-09-02
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18 页