What is the reason why the vacuum capping machine cannot tighten the lid tightly

The semi-automatic vacuum capping machine is widely used in daily life, and many glass bottles and cans in supermarkets are sealed by vacuuming.

What should be noted when buying a vacuum capping machine

How much is a semi-automatic vacuum capping machine

Suitable for vacuum capping of various three (four) screw capped glass bottles in industries such as food and beverage, seasoning, and health products.