The 28th Shanghai International Ad & Sign Technology & Equipment Exhibition2020. 03.04-07 | March 04-07, 2020National Convention and Exhibition Center (Shanghai) No.333 Songze Avenue, Qingpu District, Shanghai1.1H, 2.1H, 3.1H, 4.1H, 5.1H, 6.1H, 7.1H, 8.1H, NHIn March this year, the 27-year-old "APPPEXPO Shanghai International Exhibition" was unveiled at the Hongqiao National C...