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Where there are wear-resistant tube, high temperature ceramic tube

Where there are wear-resistant tube, high temperature ceramic tube

Answer:

. different fire rating: Yanmian sandwich panels for the A-level, EPS for the B3-class, polyurethane B1 level. . different insulation properties: the three polyurethane sandwich panels the best. . waterproof performance is different: the three polyurethane and EPS better than rock wool. . the density of different: rock wool bulk density is generally 120KG / cubic meter, EPS is generally . the polyurethane is generally 40. In short, the overall performance of polyurethane sandwich panels try to catch the pole to make the best words, Building Enclosure Best! I have a number in my profile
The fraction of 200 ℃ in the condensed product was analyzed by GC-MS, and the degradation phenomena and products were discussed

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