发布时间:2025-01-31 04:08:23
防火绝缘材料应该符合国家或国际规定的相关标准,如果使用不符合标准的材料,可能会导致材料本身易燃或难以阻燃,无法起到正确的防火作用。
请问防水专家带压给水管可用ab胶处理吗如果不行请问用什么胶水
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