polycarboxylates high performance water-reducing admixture
...聚羧酸系高性能减水剂;碱含量;粉煤灰 [gap=1327]Key words:prestressed concrete cylinder pressure pipe;polycarboxylates high performance water-reducing admixture;alkali content;fly ash ..
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polycarboxylates high performance water-reducing admixture
聚羧酸酯类高性能减水剂
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