Shenzhen Afro muaj cov kws tshaj lij R & D pab pawg nrog ntau tshaj 10 xyoo dhau los hauv kev khaws cia paj kev tshawb fawb thiab kev txhim kho, peb tuaj yeem muab kev pabcuam ib-nres kom tau raws li cov kev xav tau ntawm cov neeg siv khoom sib txawv.
