Ntchito ya Harbin Expressway ndi Longdingshan Tunnel

Joiwo Sangaphulikeidapambana pulojekiti yolumikizirana ya turnkey mu 2018 popereka ndikuyika makina otumizira, mafoni adzidzidzi osagwira ntchito komanso mabokosi olumikizirana omwe sagwira ntchito mu ngalande ya Longdingshan yomwe ili pa Harbin Expressway.