Generally, a train car has 1 18 seats. Usually the seats with the tail numbers 0, 4, 5 and 9 are all by the window. A few train cars have 1 12 seats. In this case, the seats with seat endings 3, 4, 8 and 9 are all by the window.

In addition, there are 2 1 type, 22/type and reclining passenger cars in China, some of which can take 1 16 passengers or1/8 passengers. Seat numbers are arranged in different ways, but there are rules to follow: 1 16 seats. 1 18 passenger car, seats with mantissa of 0, 4, 5 and 9 are all by the window.