31 Lightboxes as Conference Backdrop:  In May, 2019,our client emailed us that he need several backdrops used in CIS 2019 and inquired a solution. After several communications and guidance, we made the whole solution clear as 31 lightboxes which including 1 big trapezoid lightbox.From the beginning of negotiation to sending the goods,our professionalism won our clients's compliment.And they sent us their thanks and many feedback pictures and vedios.