Are 5.0 ml Macrew™ and ClikLok™ centrifuge tubes appropriate for long-term storage?

Both these centrifuge tubes are suitable for long-term storage in ultralow temperature freezers (-80° C) or in the vapor phase of liquid nitrogen LN2 (-196°C).

However, the storage box T330-25X is only suitable down to -80° C because it is made of polystyrene. (X indicates the color code)