- Size:14mm, 15mm, 17mm, 17.8mm, 19.3mm, 20mm, 25mm,
- Material: PP, POM, PE
- Introduciton: The built-in pump core is in the center of the pumo core, so it direct contact with the liquid. And it’s force of the pressure is smaller than the outer spring core , therefore the built-in pumm core is better for perfumes.
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