a steel structure was used to weld a cube structure with downward corners at the meeting site.. one person can easily operate the inventive by the quick lock of the uc series, which makes the lifting and installation of the led ceiling safer and makes it simple to achieve the 3d effect visible to the naked eye and seamless screen splicing. after the uc series product was lit up, it attracted a large number of people in the venue to visit and take photos. to fulfill the unique design requirements of customers, the uc series can also be combined with triangular and fan-shaped cabinets to achieve a variety of special-shaped splicing.