Two 5-square-meter production freeze-drying machines are exported to South Korea. Korean customers mainly engage in the research and development of biological products for extracellular vesicles and therapeutic drugs for stem cells, leading to large-scale production. Mainly used for? Targeted drug delivery, tissue regeneration and repair, etc. The Korean customer purchased two 5-square-meter production freeze-drying machines, each with a production capacity of 10000 bottles per batch. The effective area of the extracellular vesicle production type freeze-drying machine is 5-30 square meters. It adopts a box trap separation type, with high production efficiency and can be continuously produced. Its service life is over 15 years. In addition, purchasing an extracellular vesicle production type freeze-drying machine can provide services for extracellular vesicle freeze-drying process development and extracellular vesicle freeze-drying amplification process.