This product is made with method of toughening and reinforcing mullite ceramic through ZrO2 phase change, unique forming and firing technology, and is characterized by high mechanical strength, low deformation under high-temperature load, good thermal impact resistance, easy construction, high pore ratio, even distribution of airflow and low drag drop. Ideal packing-bearing device for large-sized packing tower.Specifications:1) Bending strength: ≥185MPa2) Resistance to abrupt heating and abrupt cooling: no crack during twice heatexchange in 20~250oC water3) Acid resistance: ≥99%4) Max. dimensions: 2,000mm x 264mm x 55mm