sprue-former

sprue-for·mer

(sprū-fōr'mĕr),
The base to which the sprue (2) is attached while the wax pattern is being invested in a refractory investment in a casting flask; it is sometimes referred to as a crucible-former.

sprue-for·mer

(sprū-fōr'mĕr)
Base to which sprue is attached while wax pattern is being invested in a refractory investment in a casting flask; sometimes called crucible-former.
Synonym(s): sprue base.