... for choice.Laminated instructure introductionStructureFeatureApplicationBOPP/CPP or LDPEMoisture proof, good heat seal, good air barrier and transparencyDry food,expanded food,biscuit,cookies ... packagingPA/RCPP or LDPE121°C,30min high temperature cooking,easy heat seal,can frozenMushroom, bean, meat inner packagingPA/AL/RCPP or LDPE128 ...