
Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel (ISO 15630-3:2019)
出版:Comite Europeen de Normalisation

專家解讀視頻
Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel (ISO 15630-3:2019)
出版:Comite Europeen de Normalisation
專家解讀視頻