n A gate for molding tubular objects in which the top of the cavity is encircled by a thick runner connected to the cavity through a thin web (the ring gate) along its entire circumference. This promotes filling the mold without objectionable weld lines.
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Gooch, J.W. (2011). Ring Gate. In: Gooch, J.W. (eds) Encyclopedic Dictionary of Polymers. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6247-8_10068
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