Keywords: TW-Art089.png 中華民 指示標誌指2: 道路線編號 Taiwanese Guide Sign G2 Provincial Highway http //www iot gov tw/public/Attachment/55410542871 pdf 2003-09-24 gov tw 號 八十 Article number 89 Image TW-Art089 1 png 2007-11-01 至今 to present 3 number Taiwan provincial highway shields |