| 摘要 |
A drainable pouch is disclosed which comprises a pair of sidewalls of flexible sheet material having side edges joined together to define a cavity having a discharge end provided with an outlet valve for draining the cavity. The sidewalls also are joined together throughout a central region thereof such that the cavity formed by the sidewalls completely surrounds the central region. With this construction, the central region defines a peripheral edge and has at least one opening in a location which is spaced inwardly of the peripheral edge to receive and secure the outlet valve when the discharge end has been folded.
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