日产精品久久久一区二区,国产高清在线a视频大全,国产自产v一区二区三区c,欧美亚洲国产一区,成在线人免费视频一区二区三区,亚州视频一区二区,91久久精品一区二区三区

CN
CN
    • PCA?-Ⅷ High Performance Polycarboxylate Superplasticizer
    PCA?-Ⅷ High Performance Polycarboxylate Superplasticizer Download

    1565837596864342cc5w.jpg

    PCA ? -Ⅷ is a new generation superplasticizer with a base of modified polycarboxylic ether. It offers maximal water reduction, increased early strength, and enhanced finishing characteristics. PCA ? -Ⅷ contains no formaldehyde, calcium chloride or other purposely added chlorides and will not initiate or encourage the corrosion of the steel present in the concrete.