[Pure plated aluminum foil bags and bags of difference]: First, from the material, said aluminum is aluminum bags, high-purity aluminum bags doped composites. Second, from a cost that is higher than the price of aluminum bags aluminum bags. Third, from the performance that aluminum bags moisture, the cooling effect is better than aluminum bags aluminum bags completely dark, aluminum bags shading effect is four, from the use, the aluminum vacuum bags more suitable for loading Deli , meat, aluminum bags suitable for loading tea, powder, aluminum bags and other electronic components is a soft material, a certain degree of elongation, and aluminum bags are brittle. Water vapor transmission: ≤0.006g / m · 24h (40 ℃ · 90% RH) Oxygen transmission rate: ≤0.024ml / (. M · 24h · 0.1mPa) Composite strength:> 25 N / 15mm Edge Strength:> 35 Newton / 15mm puncture strength:> 24 lbs sealing temperature: 150 ℃ ± 10 ℃ vacuum bags compared with ordinary bags, has a relatively superior performance, both to extend the shelf life of goods, it can also ensure that it does not taste change. This is because the bag has a special functionality. The vacuum bag must have a very good sealing properties, namely air and moisture barrier properties, the barrier of the ingredients are water, oxygen and carbon dioxide, so that goods in a completely isolated environment protected, this high barrier made of co-extruded film, a relatively stable nature