retort bag application: for meat and fowl package good barrier, anti-puncture, good for retort application retort bagapplication: for meat and fowl packagegood barrier, anti-puncture, good for retort applicationA: Transparent type: BOPA/RCPP, PET/RCPP, PET/BOPA/RCPP, BOPA/PVDC/RCPP, PET/PVDC/RCPPB: Al type: PET/AL/RCPP, PA/AL/RCPP, PET/PA/AL/RCPP, PET/AL/PA/RCPP