ning work in Chengdu CRRC Long-Rail Vehicle Co., Ltd. (hereinafter referred to as “Chengdu Zhongche Changke”), and officially debuted. Line 5 will be the first subway line in Chengdu to use the A-type 8 car grouped vehicles. Compared with other subway trains in Chengdu, the Line 5 vehicles are wider and longer and can take more passengers.