Suzhou shielding bag using the two-story complex: (PE / VMPET or CPP / VMPET), has excellent anti-static, anti-RF, water vapor permeation, salt spray, and many other functions, as well as shielded from external personnel, ESD electrostatic discharge and equipment external electromagnetic radiation performance. Applicable to PCB, IC and other static-sensitive class of high-tech electronic products, transport and packaging. Suzhou shielding bag with excellent anti-static, anti-RF, water vapor permeation, salt spray, and many other functions. 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 transparent material anti-static material, the middle layer of semi-transparent conductive metal, which has a good anti-static, static shielding performance. Plastic packaging lightweight, lightweight and now has become a major trend in the packaging industry, less production of packaging materials, packaging makes weight loss much lower cost to the environment and businesses are profitable, generally speaking, Plastic bottles, plastic containers, plastic hoses and plastic covers and other types of containers easier to achieve weight loss goals. As people's living environment and the continuous improvement of environmental quality, green, environmentally friendly, low carbon plastic packaging will be more respected by the people. Plastic packaging has been further developed mainly to food packaging to industrial packaging, pharmaceutical packaging, building materials packaging, cosmetic packaging and other fields, and its scope and prospects will be more broad.