J&R Technology Ltd yog ib qho ntawm Tuam Tshoj phab ntsa mount hu xov tooj thaum muaj xwm ceev chaw nres tsheb manufacturers thiab cov chaw muag khoom nrog ib qho ntawm cov npe nrov, peb kuj muaj peb lub Hoobkas, peb yog cov tuam txhab tshaj lij thiab tuaj yeem muab koj zoo tshaj plaws phab ntsa mount hu xov tooj thaum muaj xwm ceev. , SOS intercom cov khoom. Txais tos mus yuav cov khoom lag luam zoo los ntawm peb.