"tri fold led display"

เครื่องจักรโฆษณา LED ความละเอียดสูง จอแสดงผล LED แบบพับสามทบหลายมุม

The three-fold LED advertising machine can be folded left and right to display different content on both sides. It requires no installation and can be used as soon as it is powered on. When unfolded, it becomes a large screen, and can be published and played with one click on a mobile phone. 1. ...