The hopper wagon is used to deliver grain expecially for bulk grain.It is convenience to loading and unloading the grain. Type L18 ... wheat,corn and soybean. The wagon's body is welded loading structure fully made of monobloc steel plate with big arc ... ,consists of underframe,side frame,end walls,doors,hopper,wagon top,cap for loading goods,etc.Adopting type 120 control valve,spinning ...