I-Yihtong, ikwi-Hinan, eChina, iphuhlise i-bin yenkunkuma yenkunkuma ye-bin yokutyibilika, ehambelana ne-A13 i-Soment yenkampani yenkampani ye-Ultrasonic ekude.
I-Yihtong isebenzisa itekhnoloji ye-Ultrasoson ye-ERTRAMONIC njengoko ikhutshiwe iphakathi, idlulisela ulwazi lwexesha lexeshana nemodyuli ye-NB-IOI ibeka i-bins ye-NB-IOI isasazwe kwindawo yokusebenza ye-GIS.
