With anti-static, electromagnetic interference, moisture three functions. Seal firmly between layers of composite materials, and strong; four-story structure, with good resistance of the water of oxygen function; resistant to puncture. Requirements for electronic products with moisture-proof packaging: all types of PC boards, IC integrated circuits, optical drives, hard drives, other electronic components. The surface resistance can be achieved: ≤ 108-1010Ω. 
 The product is also based on customer requirements, does not infringe intellectual property rights in the case of printing text, graphics, trademarks, etc., to help you to promote your corporate image. 
 It has three functions of resistance of the static, electromagnetic interference and moisture. It could be firmly hot sealed and strongly laminated between different layers of material; four cornered solid construction make it also has good function of resistance of the water and oxygen. It can endure to piercing well. This kind of bag applies to package electronic products with moisture-proof requirement: such as PC boards, IC integrated circuit, CD driver, hard disk and electron component parts ... etc. The surface resistance: ≤ 108-1010Ω. 
 Furthermore, for the sake of helping you to promote your enterprise status, this product can be printed with your specified letters, pattern and trademark, which must not infringe on the others knowledge property right.