剛性材料和基麵用無沙，彈性基麵、有冷熱交替受熱不均勻（如地麵被陽光照射）、普通陶磚（帶孔的ceramic)用沙料

來源: fuz 於 2018-06-03 11:29:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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