隻要管壁夠厚就沒事

來源: MoonRiverMe 於 2020-06-12 16:04:09 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

彎的技巧是在管子裏灌沙而且要搗實了再加熱彎，這樣才不會癟了

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