The D-class CRH Train is a Chinese high-speed bullet train class (Dongche) used on many intercity and regional routes, linking major and smaller cities across the rail network. It runs at speeds up to 250 km/h, stops more often than the fastest services, and offers seating options such as Second Class and First Class seats; some overnight D services also include soft sleeper options for longer trips. For travel planning, Rail Monsters offers D-class CRH tickets with online booking where you can compare prices, choose routes, and book tickets online for your trip.