发布时间:2025-02-07 00:10:45
耐候性是指抗紫外线和耐臭氧、酸雨冰雪等极端天气的耐气候性能,接缝位移能力能够长期承受接缝宽度变化,变大变小的情况小不会开裂的能力。
耐持久性是指玻璃胶的使用寿命,持久性越强,玻璃胶的使用寿命越长。
您好排烟系统在建筑防烟排烟系统技术标准gb512512017之前执行的是哪个规范
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