Ceramic tower packing in the tower was overlap each other to form a chain structure of curved airway, conducive to a gas-liquid flow is evenly distributed. And reduce drag. Compared with Raschig rings of better performance, but it is easy nesting, could easily lead to channeling in stacked sets Chuan Pan-point. Bila Xi ring is easily broken in the bed. The arc saddle ring, also known as Bell Saddle ring, appeared earlier saddle filler, shaped like a saddle, size from 25mm to 50mm is more commonly used. The arc saddle surface regardless of the inside and outside all open the same uniform distribution of fluid on both sides of the surface. Another characteristic of it is stacked in the column, the pressure on the column wall side is smaller than the annular packing.