On December 16, skilled workers carried out profiling and fine grinding of track welding points between Panyu Square Station and Hengli station of Guangzhou metro line 18.

Guangzhou metro line 18, a key infrastructure construction project in Guangdong, Hong Kong and Macao Dawan District, which is implemented by the third company of China Railway 11th Bureau, needs to lay 122.6 kilometers of tracks. Guangzhou metro line 18 connects the downtown area of Guangzhou and Nansha Free Trade Zone, with a design maximum speed of 160 kilometers per hour.