| 摘要 |
A pressurized container for fluid is disclosed. The container has a dual-layered soft material and an inner valve plate acting on each other alternatingly to squeeze out the contents in the container. The valve plate is a plugging valve which is effectively isolating the contact of the content with the external, and allows fix amount squeezing of material. A lower valve plate is provided ON and OFF which allows the internal pressure within the container to increase if the container is squeezed so that the upper valve plate is open, and the contents of the container can be discharged.
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