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1. Light weight, good metal luster and light avoidance, high reflectivity to heat and light, technical luster and reflectivity can improve the brightness of printing color.
2. High barrier performance, strong protective, gas and water vapor impermeability, prevent moisture absorption, gasification, not vulnerable to bacteria and insects
3. The shape stability is good, and is not affected by humidity change.
4. Unable to bear force, no sealing and performance, there are pinholes and wrinkle phenomenon, so in general not used alone, usually with paper, plastic film processing into composite materials, overcome the shortcomings of no sealing, its advantages such as isolation are fully played.