What is a non gas cylinder pump

Gas cylinder free pump is a non pressurized vacuum distribution system that uses a mechanical pump installed inside a bottle When you press the pump, the disc in the bottle rises, allowing the product to leave the pump The materials stored in the bottle are preserved and kept intact until they are used up Using vacuum packaging will help extend the shelf life of the final product The contents of the vacuum bottle can be completely isolated from the air, avoiding oxidation and deterioration of the product due to contact with air, and promoting the product grade with its high-tech concept. The commonly used vacuum bottle in the market consists of a cylindrical container with an elliptical shape and a piston placed at the bottom.