At present, when marketing products, everyone hands over products and business cards to customers separately, so why not combine them? This can eliminate the difficulty in handing over business cards. How to open a pocket on flexible packaging materials? During conception, food preservation was the highest priority, so an extra layer of film should be added to the structure to overcome this problem; Moreover, how to limit the width of the pocket? When making bags, mold heating can be used to frame the customer's desired pockets.
