首页>
外国专利>
Trawl, drawn in steel, with currents, higher and lower, consisting of continuous plate to full section or parallel plates, in the longitudinal direction of the beam, connected, in the transverse direction, by electrowelded net and full circular section irons and with soul beams in continuous round triangle-shaped bars straight and assembled, in the longitudinal direction of the beam, in a way reflecting the axis of symmetry.
Trawl, drawn in steel, with currents, higher and lower, consisting of continuous plate to full section or parallel plates, in the longitudinal direction of the beam, connected, in the transverse direction, by electrowelded net and full circular section irons and with soul beams in continuous round triangle-shaped bars straight and assembled, in the longitudinal direction of the beam, in a way reflecting the axis of symmetry.