The Pump Body And Cover Are Made Of Plastic Materials, Which May Include Engineering Plastics Such As PP (Polypropylene) And PE (Polyethylene). These Materials Have Good Chemical Stability And Corrosion Resistance. They Are Threaded, And The Pump Head Is Fixed To The Bottle Mouth By Rotating, And Is Equipped With A Plastic Cover To Enhance Sealing And Protect The Pump Head From Contamination.
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