pigistusvaltstooli(de)ga valtspink suurte toorikute (bluumid, slääbid) valtsimiseks valuplokkidest (vt pigistusvaltstool; bloom; slääb), a rolling mill consisting of one or two roughing stands in which the blank is hot rolled to reach the minimum thickness requirement; is used to produce blooms or slabs (see: slab; bloom; roughing stand)