... kraft paper bag / brown paper bag 1.good puncture resistance 2.sealing strong 3.environmental friendly 4.non-toxic paper bag, kraft paper bag, brown paper bagMaterial: PET/NY/AL/PAPER ... apply to building materials, chemical raw materials; Paper-plastic bag gets more and more widely used, which ... , PAPER, AL, PA, ETCInner-layer:CPP, PE, White milk PE, VMPER, ETCUsage Food, tea, medical, seed, coffee... ...