Ventilating tubes are made of galvanized steel plate, the gap between the joint of air tube and air well should be filled with incombustible materials.

The shell material used in diversity: Aluminum Alloy, color steel plate, stainless steel plate, galvanized plate etc.

Cold-rolled plate, galvanized sheet, hot-rolled plate, iron ore, pickling board, processing, steel, surface treatment, Pipe, 5600 yuan per ton.