? The Model 25 double deck coach was originally designed by the Nanjing Puzhen Locomotive and Rolling Stock Works. Commissioned by the Ministry of Railways of the PRC in 1996, it was put into full production in 1997. ? Being 25.5 meters long, the Model 25 coach is one of the longest coaches that run on Chinese tracks. Depending on the type of seats, its air-conditioned compartments can carry up to 148 passengers. Its primary purpose is for high-speed transportation and it is designed to be extremely stable and can be pulled at speeds of up to 160 kph. Nearly 10,000 coaches were produced by the end of 1997. ? ?