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Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c…
composite concrete foaming agent is a non-polluting physical foaming agent produced by processing, deforming, and synthesizing various polymer components. It has good foaming ability, and its performance is neutral. Water has good affinity, and it is…
Applicationof composite fiber concretes in strategic emerging industries Incorporatingthe fiber concrete into the polymer, the prepared nanocomposite materialexhibits excellent performance in mechanical properties, thermal, optical, andelectrical pro…
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