... 4. which used in supermarket (1), HDPE material.(2), freezer bag, food packaging bag on roll, no paper core, with outer opp ... bag.(3), size: 20x30cm, 6mic, also 18x28cm, 6mic.(4), packing: 100pcs/ ... to supply you.(6), pass ISO22000 certificatethis kind of packaging bag, the production capacity is low. HDPE freezer ...