... diameter:25mm,38mm,50mm,76mm 1.Advantage:a.Cascade Mini Ring for short, a lower aspect ratio increases capacity and ... a combination of Metal Cascade Mini Rings' vertical alignment and open sides, allow any solids present to be flushed downwards ... methanol ,Separation of organic acid,Absorb or disabosorb tower3.Cascade ring Characteristic indexes: SizeThickness(mm)Dimension(mm)Numberper m3Bulk density( ...