
Precast Concrete Products - Requirements, Tests And Procedure Of The Proof Of Conformity For Precast Concrete, Reinforced Concrete And Prestressed Concrete Elements
出版:Osterreichisches Normungsinstitut

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Precast Concrete Products - Requirements, Tests And Procedure Of The Proof Of Conformity For Precast Concrete, Reinforced Concrete And Prestressed Concrete Elements
出版:Osterreichisches Normungsinstitut
专家解读视频