... passed SGS, CTI, SGS-FDA, ISO9001-2008, QS. Widely used for food and daily use and chemical, including packaging pouch and ... the structure of the laminated film. Usually there are following structures like OPP/CPP, OPP/PE, OPP/PETAL/PE, PET/PETAL ... . plastic coffee bag with zipper or valve /plastic zipper bag for coffee/plastic valve bag for coffee/plastic coffee bag