Two engineering project exhibitions by year-two students of Higher Diploma in Mechanical Engineering (HDME) and Higher Diploma in Aircraft Services Engineering (HDASE) were held at PolyU Hung Hom Bay Campus and PolyU Industrial Centre on 24 and 25 April 2019 respectively. The HDME exhibition showcased the project design theme of "Automated Machines" while the HDASE exhibition featured aviation engineering projects.