Wujiang composite shielding bags with excellent anti-static, anti-RF, water vapor permeation, anti-salt spray, and many other features. Their unique four-layer structure can be formed "induction hood" to protect the bag of goods and electrostatic field isolation. In addition there is a layer consisting of vinyl to eliminate static, anti-static function is superior. Anti-static shielding bags} {inner and outer layers of a transparent material anti-static material, intermediate conductive metal layer translucent, which has a good anti-static, static shielding performance. 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.