19 stations of Guiyang Metro Line 3 capped

Guiyang, capital of Southwest China's Guizhou province, has started construction on 29 stations for first-phase project of Guiyang Metro Line 3, according to Guiyang Urban Rail Transit Group Co. 

There are 22 tunneling shield machines currently working underground, and 75 percent of total civil engineering has been completed. 

The main structures of 19 stations have been capped so far.