| 摘要 |
There is described a spout for opening devices of sealed packages of pourable food products. The spout has an annular flange fixable to a respective package, and a tubular neck portion projecting from the flange and defining, with the flange, a through opening through which to pour the food product; and the spout also has, at least at a section crosswise to the axis of the opening a constriction constricting flow of the pourable food product.
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