Tisisiteme ta ku Langutisisa Betiri leti hangalasiweke vs
Tisisiteme to Langutisisa Betiri leti hangalasiweke vs. leti nga exikarhi: Swilo leswinene, swo biha, na Timhaka ta Matirhiselo lamanene Eka Tisisiteme ta Vulawuri bya Betiri (BMS), tisisiteme to veka tihlo leti hangalasiweke na leti nga exikarhi ti yimela maendlelo mambirhi ya thekinoloji lama rhangelaka. Tanihi murhangeri wa misava hinkwayo eka swintshuxo swa vulawuri bya betri, DFUN (Zhuhai) Co., Ltd. deli