Dosing plug of a single piece and injection procedure of said dosing cap. The plug is obtainable with an injection process, and the piece (1) comprises a body (4a, 4b) provided with an interior cavity (2), including a lower portion (4b) of the body an inlet mouth (5) liquid, the contour of the lower portion (4b) defining a wall (8) shaped to seal the liquid outlet, including the body (4a, 4b) of the part (1) an outer ring (7) provided with a thread (7a), and is characterized by the fact that said piece (1) is obtainable by a plastic injection process comprising the step of retracting an eclipsable core inside said piece to separate the core from the piece (1). ) injected, the thickness of the walls of the contour of the body (4a, 4b) of the part (1) being formed by the space defined between said core and a wall of the mold. (Machine-translation by Google Translate, not legally binding)
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