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Anti flooding door - An Overview

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The dams can be stacked three superior in a brick development. If you have to go larger, widen the base just like a pyramid. The upper you need the wall peak, the thicker The bottom need to be. Stacking straight up will make an unstable base and they may slide https://telegra.ph/Cua-Chong-Ngap-Tu-Dong-Giai-Phap-Cong-Nghe-Cao-Bao-Ve-Ngoi-Nha-11-19

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