... standard products of national metallurgical industry. ZT Type Hot Metal Ladle Car ZT-35-1, ZT65-1 and ZT65-2 ... as various kinds of valves using on blast furnace, equipments before furnace, blast furnace top equipments, burden loading mechanical equipments, equipments on ... tuyere & slag notch system, non-standard equipments on blast furnace stack & hot blast stove, casting house equipments and other ...