謝謝!!!
回答: 鬆動的去掉, 鑿掉, 用水衝洗幹淨, 半幹時, 用水泥灰槳stucco填充 . 5天後, 有縫隙的地方用sealant 再填。
由 PrimeryColor
於 2019-12-15 20:04:32
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