
Sealants for non-structural use in joints in buildings and pedestrian walkways Part 5: Evaluation of conformity and marking
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Sealants for non-structural use in joints in buildings and pedestrian walkways Part 5: Evaluation of conformity and marking
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频