Thaum 14:00 rau Lub Rau Hli 2, Tuam Tshoj Unattended Retail & Supply Chain Exhibition tau ua tiav ntawm Shanghai World Expo Exhibition Hall. Qhov Exhibition no yog ib qho tseem ceeb tshaj plaws thiab cov rooj sib tham sab saum toj hauv kev lag luam muag khoom hauv tsev. Txhua xyoo, kaum tawm txhiab tus neeg tuaj xyuas los ntawm kev lag luam ...