Txhawm rau txhim kho cov neeg ua haujlwm sib koom ua ke, kev sib koom tes,

Pab pawg R & D tau teeb tsa kev mus ncig ntawm ntug hiav txwv nrog rau kev tswj cov khoom lag luam thaum Lub Yim Hli 19, 2019.

* ACCO TECH mob siab rau tsim cov cwj mem nyeem ntawv, cov khoom ua si thaum ntxov, thiab lwm yam zoo dua.