I will send you Frozen Cells for monoclonal antibody production, can you let me know your Instructions for the preparation and shipping of hybridoma cells for antibody production?

Only cryo-preserve rapidly growing and dividing hybridomas (log phase hybridomas) that show more than 90% viability. Under sterile conditions, harvest the log-phase hybridoma cells in a centrifuge tube and perform a cell count using a hemacytometer and trypan blue. Centrifuge the cells at 200 g (or 1,000 rpm) for five minutes at room temperature. Carefully remove the medium and re-suspend the cell pellet in freezing medium (DMEM with 20% fetal bovine serum and 10% DMSO) to final cell density of 5-10x10^6 cells per ml and aliquot into cryovials at 1.0 ml/vial. Place the cryovials in cryo freezing containers or other suitable containers and place in freezer overnight at -80°C. The next day, transfer the cryo-vials to a liquid nitrogen tank. Alternatively, they can be shipped overnight if packed in a sufficient amount dry ice. Wear gloves and a facemask when working with liquid nitrogen tanks or frozen cryo-vials. If possible, send duplicate samples of each cell line.