three sides seal milk tea packaging bags 1.beautiful color 2.Eco-friendly material 3.superior quality 4.reasonable price three sides seal food packaging bag for milk tea powderSpecifications: 1. Structure: Laminated layer is optional, PE or CPP/PET/AL, PE /OPP, matte CPP/PET/OPP, PE/PET/OPP, CPP or PE/PET/BOPP, PE/PA, RCPP/PA etc.2. Advantage: security, non-toxic, eco-friendly, 3. Printing: ...