Youtube TLEN1696 Airtight property test on zipperlock PET/AL/LDPE grain flour stand up pouch TLEN1695 Drop test of grain flour stand up pouch with total thickness 120 microns PET/AL/LDPE TLEN1694 Airtight property test on zipperlock PET AL LDPE supplement standup pouch TLEN1693 Airtight property test on zipperlock PET AlOxPET LDPE dry nuts standup pouch TLEN1692 Drop test of 250g dry nuts standup pouch with total thickness 100um PET/AlOxPET/LDPE TLEN1691 Actual effect test of laser scour line PET/AlOxPET/LDPE dry nuts bag TLEN1690 Airtight property test on zipperlock chinchin standup pouch TLEN1689 The drop test of chinchin with total thickness 150 microns Matte BOPP/YYVMPET/LDPE TLEN1685 The drop test of 1LB coffee beans with totel thickness 150 microns PET/VMPET/LDPE