Dewar Container, Chemical Equipment manufacturer / supplier in China, offering 30 Liquid Nitrogen Cryogenic Storage Tank New 10L/20L/30L/50L Capacity Vacuum Chemical Storage Equipment Pressure Vessel, 30 Liquid Nitrogen Cryogenic Storage Tank, 30 Liquid Nitrogen Cryogenic Storage Tank New Vacuum Laboratory Chemical Storage Equipment 10L/20L/30L/50L and so on.