The open top wagon is mainly used to transport coal, mineral ore, mechanical equipment, steel, timber, messive goods, etc. The wagon could be loaded and unloaded manually or unloaded mechanically with tipper. The car body is steel welded structure with underframe, side wall, end wall, door, ect.The main material of carbody is weathering steel.

The structure of wagon will include car body, coupler and draft gear, braking system and bogie etc.

Service life: 30 years or 6 million Km, whichever period concludes earlier.