Some knowledge about glass vial, rubber stopper and vial cap matching
Only if the glass vial, vial cap and rubber stopper are the right size can they match.
This involves the following dimensions：glass vial outside diameter, rubber stopper diameter and vial cap inner diameter;
the vial mouth thickness, rubber stopper thickness and vial cap inner height.
When the inside of the lid is 0.3-0.5mm thicker than the bottle mouth thickness and the thickness of the rubber stopper, their sealing is perfect.
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