有錢和時間用探傷設備來檢測皮帶，還不如換個新的皮帶省時省錢。

來源: southmountainer 於 2019-03-24 15:03:28 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.