If you think the Chinese military is going to be using quantum computers before the American military, then you've got my attention.
China plans to launch a satellite named QUESS to perform quantum encryption and communication experiments later this month. They also have some other quantum computing projects that seem to be going well.
They have ridiculous manpower at their factories working 24/7 to make billions of phones, utilizing that type of experience to fabricate couple hundreds of thousands of chips to build a super computer can probably take a couple of months. Assembly is probably another couple months and getting the software in order is probably another couple of months.
Now if it was a US gov't contract, it would probably take a decade...
China does not have semiconductor fabs capable of producing anything close to a current generation Intel 14nm process Core i7 or Xeon CPU.