Singapore Inventors' Development Association (SIDA) 新加坡发明协会
ViTUN: Ultrasonic washing pen!
Celluveyor: Conveyor Belt Can Move Packages In Any Direction
Jun 12
Click here for YouTube link
Recommended by Jason
Search: propoint, mouse, presenter, 鼠标, 简报
20180612A2_ProPointMousePresenter.zip