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本文根据齐齐哈尔嫩江公路钢桥涂漆工程实践，重点论述了老旧钢桥除掉旧漆层、喷涂新保护漆的施工技术。
Based on the practice of steel bridge coating project of Qiqihar Nenjiang Highway, this article focuses on the construction technology of old steel bridge removing old paint layer and spraying new protective paint.