product details:
-12ml external spin cryovials/sample tubes
-Cryopreservation tubes/sample storage tubes
-Polypropylene (PP) material
- External rotation, the pointed bottom can stand
- The tube wall has graduations and marking areas for easy sample identification
- DNase free, RNase free
-Widely used for cryogenic storage of various biological reagents and liquid samples
- Do not put it directly into the liquid nitrogen tank, at least in -80 ℃ refrigerator for storage use









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