In order to further enhance the driving experience of passengers, BJMTR updated 431 pieces of PIS across 24 stations of BJL4 .
BJL4 displayed 27 days to replace more than 400 PIS
2015-09-10
BigMediumSmall
In order to further enhance the driving experience of passengers, BJMTR updated 431 pieces of PIS across 24 stations of BJL4 .