中文字幕亚洲综合久久2,亚洲欧美日韩综合,久久国内视频,亚洲综合第一

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.