40ml Airless Pump Aluminizing Barrier Laminated Cosmetic Packaging Tube SanYing uses lamination technology instead of the traditional extrusion technique for the tube making process. The special aluminizing process provides the aluminum film with excellent chemical resistance, highlighted metallic luster, high-barrier property, smooth feel and good resilience. Coupled with ingenious printing design, it has an exquisite exterior appearance, which greatly improves the quality