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Stand up bag introduction

Apr 01, 2017

Depending on the edge are divided into four and three in two ways.
Four-edge refers to the product packaging at the factory outside the zip there is a layer of plain edge, should be common when using edge RIP, again using ZIP achieve repeated start, in this way, the zipper edge strength is not conducive to transport disadvantage.
Three side is directly with the zipper side sealing, usually used to hold the light product, standing pouch with zipper for packing light solids, such as candy, cookies, jelly, but four edges bag can also be used to wrap rice, heavy products such as cat litter.