MMF BIOTECH CO., LIMITED is a high-tech China 4.5ml Cryotube factory and 4.5ml Cryotube company founded on 1992, specializing in manufacturing custom 4.5ml Cryotube, the filtration products and consumable products of bio life science. The product line including various of filter membranes, filter cartridges, syringe filters, capsule filters, pipet tips, serological pipets, centrifuge tubes and so on.