Electric welding, now adopted for the entire pressure hull, has greatly facilitated the symmetrical and economical disposition of the material, with a consequent improvement in diving depth .
Ukuwelda ngombane, into ethathelwe indawo sisiqu senqanawa esinoxinzelelo lomoya indawo yonke, kwaye ngokulingana macala kunye nokucalulwa kwezixhobo ngokoqoqosho, okuneziphumo zokuphucuka kokuntywilela kwindawo enzulu.