... cover PE / PA extrusion films, PE / EVOH co-ex film bottom film,frozen vacuum bags,frozen pouchFrozen vacuum bag made from high ... barrier coextruded film which can prevent items form vapor,aroma, mildew, exygen, ... /TIE/PA/EVOH/PA/tie/PETypical size:50 micron---280 micronWidth:120mm---750mmone (for tube film) or three sites sealing availabe.shanghai ...