Beside the cities and Provinces that allow a 144 hours visa exemption, transit without a visa is permitted for a maximum of 72 hours only if you stopover in one of the following cities:
Changsha (Changsha Huanghua International Airport);
Chongqing (Chongqing Jiangbei International Airport);
Guangzhou (Guangzhou Baiyu International Airport);
Guilin (Guilin Liangjiang International Airport);
Harbin (Harbin Taiping International Airport);
Xi’an (Xi’an Xianyang International Airport).
Note that in cities that allow transit without a visa for a maximum of 72 hours, travelers can only arrive at and depart from the country by air; they also can’t leave the city where they landed (or the province they landed in depending on the arrival city).
Remember that if you land in Chongqing, Guilin, or Harbin, you can’t leave the city you’ve stopped in. If you land in Xi’an, you can only stay in Xi’an or go to Xinyang. Lastly, if instead, you land in Changsha or Guangzhou, then you can’t leave their respective provinces (which are, in order, Hunan and Guangdong).