北京三元桥，新桥面， 55米宽45米重达1300吨; 加拿大新桥 21米宽21米 600吨

来源: 勿来三于 2015-11-23 11:39:43 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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