Decision on appointing Guan Peng as vice chairman of indoor purification Service Committee of China Building Materials Circulation


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[publicity of science and Technology Award] publicity of the evaluation results of the science and technology award of China Building Materials Circulation Association in 2021 [publicity of Patent Award] publicity of the evaluation results of the patent award of building materials and household industry in 2021 about convening the technical specification for purification and disinfection of ventilation system Notice of the standard examination and approval meeting notice of the fourth national green school energy conservation and environmental protection seminar and 2021 green school logistics wisdom Construction Expo notice of the solicitation letter of the participating units of indoor air treatment spray on inviting them to participate in the preparation of the standard of graded evaluation of building indoor air quality..

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