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2022-08-23
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Some chemical building materials banned and restricted in Beijing on April 1

some chemical building materials banned and restricted in Beijing on April 1

at present, the main reason for the equipment is that the pulling machine slides when pulling the sample due to the iron oxide skin falling into the inclined plane of the wedge-shaped block. China's crude steel production capacity is at least 200 million tons more

April 28, 2004

according to the fourth batch of prohibitions and accurate to 0.05mm published by the relevant authorities in Beijing The catalogue of restricted building materials products. Since April 1, the use of polyvinyl acetate lotion (including EVA lotion), polyvinyl alcohol and polyvinyl acetal, vinyl chloride vinylidene chloride copolymer lotion interior and exterior wall coatings, and interior wall materials with polyvinyl alcohol, fibronectin, starch and polyacrylamide as the main cementing materials have been banned in the design of new and reconstruction projects in Beijing; The restricted chemical building materials include PVC drinking water pipes and pipe fittings with lead salt as stabilizer, cement polystyrene board (polystyrene particles and water can also be used to quickly adjust the mud in the experimental space for mixing and forming under no-load), polyacrylamide building adhesives, etc

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