The strictest: the standard for indoor environmental pollution control of civil construction engineering (GB 50325-2020) will be implemented from August 1! Toluene and xylene are listed as indoor pollutants


You are welcome to pay attention to “construction learning platform” and forward it! Building construction learning platform hand in hand with concrete research institute to present for you! Disclaimer: This article is about the Internet

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[Exposure] The outer walls of some urban districts are damaged and cracked [Praise] The Linong Community in Xinhua District coordinated with[Exposure] The outer walls of some urban districts are damaged and cracked [Praise] The Linong Community in Xinhua District coordinated with

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