裂縫也要補，學習後覺得需要先填補一下，再用水泥或瀝青sealant補上，否則地麵下水土流失，造成地麵下陷和地漏裂開

來源: p-b 於 2023-10-15 09:19:27 [舊帖] [給我悄悄話] 本文已被閱讀：次

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