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ASTM C497M-2018 Standard Test Methods for Concrete Pipe,Manhole Sections,or Tile (Metric)2023-06-18

ASTM C497M-2020 Standard Test Methods for Concrete Pipe, Concrete Box Sections, Manhole Sections, or Tile (...2023-05-14

DIN EN 2321-2019 Aerospace series - Aluminium alloy 2024-T3 - Bars and sections - a 150 mm2023-04-30

ASTM C497-2018混凝土管、人孔構(gòu)件或瓦管試驗方法Standard Test Methods for Concrete Pipe,Manhole Sections,or Ti...2023-04-18