... frequency heat sealed Used as pen bags or cosmetic bags for promotions, gifts, adv. PVC Cosmetic Bags, Hangbags, Promotional Bags1) ... pen bags or cosmetic bags for promotions, gifts, advertisements, packing and shopping purposes.6) Also used as packaging bags for gifts, food, toys ... manufacture of PVC bags and PVC box, covering PVC packaging bags, cosmetic bag, shopping bags, gift bags, wrist bands, ...