Detailed Product Description Raschig Ring/ Random Packing:It is the first generation of ceramic random packing. the disigner is Dr. F. Raschig. Depending on its structure, many sicientists had invented many derivates, such as Lessing Ring designed by Dr. Lessing, Spiral Ring, Cross Partition Ring designed by Leonard-Monsanto and so on. D×H×δmmSpecific area m2/m3Void rate%Bulk numberPieces/m³Bulk ...