HKACE香港優質服務協會: Service Appreciation Day w/ C All Star & 許庭鏗
https://www.youtube.com/watch?v=mWVKGmSjxck
Carl Zeiss Annual Trade Party 卡爾蔡司週年晚宴 (English- Cantonese)
https://www.youtube.com/watch?v=gGtkB5wgE5k
https://www.youtube.com/watch?v=mWVKGmSjxck
https://www.youtube.com/watch?v=gGtkB5wgE5k