B31BLevel 3
MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
**Limiting references (this place does not cover):** - Making wound articles, e.g. wound tubes -> B31C - Combined making and filling -> B65B
**Glossary:** - Envelopes or bags: essentially flexible containers, the final shape of which is determined by their contents - Boxes or cartons: including bags formed similarly to cartons, trays with upstanding side-walls, barrels, tubes and cups, other than articles formed by winding
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