Tell me please, do we need a visa?

Good afternoon!
Flight there:
Departure 16.11.2017 at 21.40 Moscow-Urumqi (arrival in Urumqi on November 17, 2017 at 7.40, waiting for 1 hour 55 minutes)
Urumqi-Guiyang (waiting 50 min.)
Guiyang-Shenzhen (waiting 2 hours 10 minutes)
Shenzhen-Denpasar (arrival on November 17, 2017 at 21:40)
On the territory of China on the way "there" will be less than 24 hours and all the time staying in China fits in one day - on November 17.

Flight back:
Departure 28.12.2017 at 01.00 Denpasar-Guangzhou (waiting 2 hours 35 minutes)
Guangzhou-Lanzhou (waiting 2 hours 25 minutes)
Lanzhou-Urumqi (waiting 1 hour 25 min.)
Urumqi-Moscow (arrival on December 28, 2017 at 19.25)
On the territory of China on the way "back" we will be less than 24 hours and all the time staying in China is within one day - December 28.