[Material] These lab vials with caps are made of polypropylene; can be repeatedly frozen and thawed
[Easy to Read and Write] These lab tubes have a white writing area and black graduations
[Features] DNase & RNase free, endotoxin free, foreign DNA free
[Working Temperature] These vials are stable from -196℃ to 121℃; Suitable for liquid nitrogen freezing (gas phase)
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