what is the negative pressure and other liquid level meter filling machine?

what is the negative pressure and other liquid level meter filling machine? negative pressure filling machine is mainly use in which factory?

The negative pressure filling machine refers to the equipment that first sucks the indoor air into the packaging container to generate negative pressure, negative pressure filling machine is widely use into wine drink filling and packaging using.

According to the different filling methods, the negative pressure filling machine is divided into a gas pressure negative pressure filling machine and a force negative pressure filling machine.

negative pressure filling machine Main representative machinery is Automatic glass bottle negative pressure wine drinks liquid bottling filling cap and label machine‍