1. Environmental protection non-toxic, the use of environmentally friendly materials, heat sealing will not produce toxic and harmful gases; 2. Tight sealing, good sealing performance, and a wide range of welding sealing, low temperature and good welding performance; 3. Sealing packing, dust and moisture barrier, unique oxygen layer, due to the high density of blow air, no moisture, good barrier properties, and is not easy to dust; 4. A high degree of transparency, good gloss, high transparency, good gloss, can improve product packaging; 5. Heat sealing performance is good, the packing is simple, the heat sealing property is good, the work is easy, the packing is fast.