[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 ℃ paper packaging for all of us are familiar with, it gives us a very environmentally friendly feeling. However, some manufacturers in pursuit of food packaging visual sense, also led to the emergence of multi-degree packaging. The role of paper in the paper-plastic composite materials primarily to give people a sense of paper and packaging materials to improve the stiffness of the visual, the barrier packaging material and peel / heat seal strength no real contribution, but sometimes a disadvantage a.