õõneskehade (torude) tõmbamine tingimustes, kus sisemist õõnsust moodustava torni asetus on iseregureeluv (vt ujutorn; vrd liikuvtorntõmbamine, kinnistorntõmbamine, tornita tõmbamine), a tube drawing with an unsupported mandrel (plug) that locates itself at the die inside the tube, causing a reduction in wall thickness while the die is reducing the outside diameter of the tube (see: floating plug; compare: moving mandrel drawing, fixed-plug drawing, tube sinking)