High-end cosmetic packaging applications – vacuum bottles Outer bottle/body: Carries the overall structure and aesthetic design, made of high-quality plastic (such as AS, ABS, PMMA acrylic). The liner can be replaced. If the brand wants to do a promotion, you can order an additional liner. Inner liner: Typically a soft plastic pouch that holds the product. Piston/base bracket: Located at the bottom of the liner, it rises as the product is depleted. Pump/damper: Responsible fo