How many signal machines are there on chengdu-chongqing railway Changlin Line?

There are 64 signal stations (including 2 railway stations) on the Changlin Line of Chengdu-Chongqing Railway, including 1 dedicated station (Chengdu), 4 first-class stations (Bali, Neijiang, Chongqing South and Chongqing), 1 1 third-class stations (Longtan Temple, Shibantan, Hong 'an Township and Jane). There are 8 passenger stations (Chengdu, Jianyang, Ziyang, Zizhong, Neijiang, Longchang, Chongqing South and Chongqing) and 30 freight stations.