In this category there are dwg files useful for design: graphic symbols, dwg alphabet, Braille alphabet, letters and numbers, accident prevention, fire prevention, evacuation plan signs, safety signs, construction site signs, rescue symbols, disabled people, electrical symbols, electronic symbols , plumbing symbols, air conditioning systems, bathroom graphic indications, finish legend, planning legends, north symbols, sport symbols, road signs, euro symbols, system diagrams, cartographic symbols, urban planning symbols, imitative hatches.