发布时间:2025-01-23 06:13:56
瓷砖返碱是正常现象。瓷砖遇水后,渗透到基层水泥,活化了各种离子和空气中的CO2水汽结合造成瓷砖返碱。冬季施工或低温施工,容易造成瓷砖填缝剂间接返碱。
冰箱里的氟泄漏,冰冻箱里的菜煮沸时有氟的味道,请问吃了有毒�
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