... material 3.superior quality 4.reasonable price three sides seal food packaging bag for milk tea powderSpecifications: 1. Structure: ... . Bag type: three-side seal bag (with zipper or not), side-gusset bag, back sealed bag, central seal bag, OPP header bag, stand-up bag ( ... : printing cylinder making, printing, lamination, separating and cutting, bag making , checkout. Our primary aim is to assist our ...