zip lock plastic bags 1, LDPE 2, ISO9008, QS approved factory 3, Size from ... 4*6CM -50*80cm, Thickness from25-100Micron zip lock plastic bags.1, LDPE2, ISO9008, QS approved factory3, Size from 4*6CM ... vigin LDPE materails. 2.type:reclosable/zip lock top/ grip seal bag style.3.usage:widely used for food,frozen,express ...