固定點(bolt)討論
那個 應該是內部的膨脹錨樁以經嚴重鏽蝕 [img]images/forum/smilies/icon_eek.gif[/img]
(由岩壁內部開始)
[img]images/forum/smilies/icon_frown.gif[/img] [img]images/forum/smilies/icon_frown.gif[/img] [img]images/forum/smilies/icon_frown.gif[/img] [img]images/forum/smilies/icon_frown.gif[/img]
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