... 4. For food, coffee or othe product aluminum coffee packaging bags with valve In today’s fiercely competitive market, a good product ... up More specifications as follows,Structure and material: OPP/CPP, PET/AL/PE,OPP/AL/PE, PET/VMPET/PE, PET/PE, PET ... /VMPET, NY/PE, PET/NY/PE, OPP/PETSize and style: customized, with/without logoThickness: determined by structure and product weight ...