摘要:
A DEVICE FOR SUPPORTING AN ELONGATED WORK PIECE SUCH AS TUBES OR RODS WITH CIRCULAR OR ANNULAR SECTION DURING TREATMENT THEREOF AND GIVING THE WORK PIECE A ROTATIONAL FEEDING MOVEMENT AS WELL AS A LONGITUDINAL FEEDING MOVEMENT WITH THE SPEED OF THE LONGITUDINAL MOVEMENT BEING VERY SLOW AS COMPARED WITH THE ROTATIONAL MOVEMENT OF THE WORKPIECE.