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Composite aluminum foil bags are used in food packaging, generally for packaging meat products, fish, seafood products, preserved meats, roast duck, roasted chicken, roasted pork, frozen foods, ham, preserved meat products, sausages, cooked meat products, pickles, bean paste, seasonings, etc. to maintain the aroma, quality, taste, and color.

【Aluminum Foil Bag Facts】: The Difference Between Yin Yang, Light Aluminum, Dull Aluminum, Dull Gold, and Pure Aluminum
Four types of bags, with different materials and colors, therefore they feel different in the hand. It depends on which bag you need, which one meets your requirements!
A. In terms of materials, pure aluminum has high purity, while aluminum plated with composite materials contains a mixture.
B. In terms of cost, pure aluminum is more expensive than aluminum-plated.
C. In terms of performance, pure aluminum is better at preventing moisture and cooling than aluminum plating, as pure aluminum completely avoids light, whereas aluminum plating only provides shade.
D. In terms of usage, pure aluminum bags are more suitable for vacuum sealing, packaging cooked food, meat, etc., while aluminum-coated bags are suitable for packaging tea, powders, electronic components, etc.
Yin-Yang Bag: One side is transparent composite material, the other side is aluminum-coated material, with a silver-white appearance and a shiny surface.
Aluminum-coated Bag: Aluminum-coated material, appearance is silver-white, with a shiny surface.
Dull Aluminum Bag: Aluminum-coated material, appearance silver white, surface matte, dark and dull.
Dull Gold Bag: Aluminum-coated material, appearance dark gold, surface matte, matte and dull surface.
Pure aluminum bag: Made of pure aluminum material, the appearance is silver white (tend to be porcelain white), with a shiny surface and a sense of texture.