【北大阪急行】緑地公園駅にて耐震補強工事を実施 https://osaka-metro-pm.com/2020/12/17/%e3%80%90%e5%8c%97%e5%a4%a7%e9%98%aa%e6%80%a5%e8%a1%8c%e3%80%91%e7%b7%91%e5%9c%b0%e5%85%ac%e5%9c%92%e9%a7%85%e3%81%ab%e3%81%a6%e8%80%90%e9%9c%87%e8%a3%9c%e5%bc%b7%e5%b7%a5%e4%ba%8b%e3%82%92%e5%ae%9f/