
Reinforced Roofing Slabs And Ceiling Tiles Of Stream-cured Aerated And Foamed Concrete; Guidelines For Dimensioning, Production, Utilisation And Testing
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Reinforced Roofing Slabs And Ceiling Tiles Of Stream-cured Aerated And Foamed Concrete; Guidelines For Dimensioning, Production, Utilisation And Testing
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频