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See Chinese contents: QB/T 4379-2012 QB/T 4379-2012: Portable paper bags
This standard specifies the classification, requirements, test methods, inspection rules and signs, packaging, transportation, storage of portable paper bags. This standard is applicable to all kinds of portable paper bags made of paper bag paper, Kraft paper, coated white paperboard, coated art printing paper (copper paper), white cardboard, etc. It is also suitable for various paper-based portable paper bags.
