These railway tank cars are designed speciallytotransport liquid petrogas,and the tank body is manufactured with material of 16Mn,with 3 kinds of volume of 100m3, 95m3, 80m3, 2 kinds of underframe: equipped with centersill or without center sill. There are 2 varietiesone: is equipped with escorting room,and the other one has no escorting room.