... , high free volume, high capacity, low resistance, high separation efficiency and so on. Metal Pall Ring Packing is widely used in ... , 410,316, 316L.Technical data of metal pall ring: Diameter (Inch)Dimension d×h×δ (mm)Specific surface area (m2/m3)Void ... "76×76×1.5720.9518418303844 "100×100×1.8740.9655012003704 "100×100×2.0350.955531200371 Metal pall ring (Dia.5/8", 1", 1.5", 2", 3", 4")