We purchase steel wheels in large quantities for the trucking industry and rail road intermodal chassis. The principal sizes we purchase are Hub piloted 22.5x8.25 and 22.5x8.25 open center rims. We purchase these Wheels in quantities of 20,000 to 60,000 units. In addition we buy in a smaller quantity steel wheel sizes 24.5 . All wheels must have all the stampings required by the United States including the DOT stamp and manufacturers code. Please send me your complete specifications and prices Fob Chinese port.