... vacuum relief valve 真空回气阀;真空卸压阀 vacuum treated concrete 真空处理混凝土 vacuum 真空 ...
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vacuum-treated concrete 真空处理的混凝土
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The concrete mixtures treated by vacuum water free can enhance the early stage strength, form release time and working efficiency.
混凝土拌和物经真空脱水处理后,早期强度提高,拆模时间提前,可提高工效。
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