1.The skirt lines on the cap and the tube body are easy for screw.The cap has a built-in silicone O- ring
to prevent liquid leakage.
2.When operating according to the standard,there is no bursting, good sealing and no leakage.
3.The tightness can be guaranteed even at the lowest storage temperature, ensuring the safety of
samples and laboratories.
4.can withstand low temperature. (.... be storedin the gas phase liquid nitrogen and can withstand
low temperature to -196˚C.)
5.Multiple color options for the cap.