
Medium-format and large-format autoclaved aerated concrete masonry blocks laid in thin-bed mortar
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Medium-format and large-format autoclaved aerated concrete masonry blocks laid in thin-bed mortar
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻