Use steel brush or burnished to clean up laitance on the surface of concrete and the concrete surface should keep dry;
刷或角磨机清理混凝土
面的浮浆层,混凝土
面须干燥;
Use steel brush or burnished to clean up laitance on the surface of concrete and the concrete surface should keep dry;
刷或角磨机清理混凝土
面的浮浆层,混凝土
面须干燥;
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