Where is the Gansu mining area?

This is the CNNC 404 base under Qilian Mountain in Hexi Corridor, which is very close to Guazhou County. There is a railway station in the hinterland of Gobi. The map generally does not indicate the address of the low wopu station. The mailbox of Lanzhou 508 in Gansu mining area of Qilihe River in Lanzhou is actually not in the security office of Lanzhou Military Region. There are more than 40,000 employees in super-large enterprises nationwide.