发布时间:2025-01-24 06:19:27
目前主要用3M胶,有些标准要划格 除附着力外,还有耐腐蚀测试,用棉布添?%酒精加50g/mm2来回磨50次;硬度测试:用1铅笔;UV油的测试还要严格
谁能给我详细的介绍下桥梁工程中的横隔板包括墩身和梁上的它们的概念作用等等
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