1.四面封合，密封性更强，锁鲜防潮效果更好 2.风琴侧幅扩容，装料饱满，陈列立体美观 3.受力均匀，承重能力突出，不易胀袋破损 4.工艺适配广，食品日化大容量包装通用

Four-side seal pouches with side gussets feature three-dimensional space and great load-bearing capacity. Tight sealing provides superior barrier performance. Available with vacuum, retort, laser anti-counterfeit and aluminum-washed techniques, perfect for large-pack dried food, meat and sauces.