Replacement of AirCon units in Libary NG Terry - 2020年07月27日 星期一 10:10 回帖数：0 Dear All, Please be informed that two of the AirCon Units will be replaced on 28 July 2020. The job should be completed in 2 days time. Access to the Library may be interfered during installation. Thanks! Regards, Dr Terry Ng. 永久链接