
Liquid carbon dioxide with permeability and compatibility is injected into polyethylene resin, then polyethylene foam sheet with small and uniform closed cells is formed. PE, PET, PP, AL, PVDC and other films can be laminated on PE foam to attain more functions, then it can be made various specs of liners that can be used in Wine, Cosmetics, Medicine, Food, and chemical for industry and so on.
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