Upright zipper bag can be used four sides seal or eight sides seal.It large scale suitable for food packaging bags.It has good waterproof performance,It also has good sealing performance.This product does not affect the taste of the food,And for the product in the process of transportation and storage plays a protective role。The product has bright appearance and characteristics,It can cause the consumer to purchase the desire.Besides our inherent conventional product itself outside, other product customizable.