Cryogenic tube use to store biological sample in lqiudi nitrogen tank , Capacity: 1.8 ml, 4.0 ml. 5.0 ml. 500 pc/bag, 50 Cryogenic tube use to store biological sample in lqiudi nitrogen tank ,Capacity: 1.8 ml, 4.0 ml. 5.0 ml.500 pc/bag, 5000 pc.carton cryogenic storage tube