| 摘要 |
PURPOSE: A double vacuum packing device for perfume is provided to simply fill a rubber tube with gas generated through the chemical reaction between fluids. CONSTITUTION: A double vacuum packing device for perfume packs fluid through first and second vacuum packing steps(100,200). In the first vacuum packing step, solid or fluid is firstly vacuum-packed. In the second vacuum packing step, the vacuum-packed solid or fluid is secondly vacuum-packed with a material which causes the chemical reaction with the firstly vacuum-packed solid or fluid.
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