
Prestressed Concrete - Structural Members Made Of Ordinary Concrete, With Concrete Tensile Stresses Or With Limited Concrete Tensile Stresses
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Prestressed Concrete - Structural Members Made Of Ordinary Concrete, With Concrete Tensile Stresses Or With Limited Concrete Tensile Stresses
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻