How to use packaging vent liner

Creherit 2020-09-01

二、Attention 


1.Make a diameter 2 to 3mm diameter in the middle of the bottle cap . 

  


2. The bottle can not be inverted for a long time, the inverted liquid will plug the porous pores, resulting in no permeability.

3. The outer layer of the shell can not be wrapped on the film, can not be covered by liquid, otherwise air can not penetrate.

 


4.Barrel piercing can not burr, otherwise it will penetrate the membrane, resulting in liquid leakage.


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