Each new location of a motor vehicle recycler’s yard shall be completely surrounded with a solid fence at least eight feet high with a suitable gate which shall be closed and locked except during the working hours of such yard. All unregistered motor vehicles, used parts, old iron, metal, glass, paper, and any other material which may have been parts of such vehicles shall be enclosed within this location. Any dismantling of material or cutting up of parts of such vehicles must be carried on within this enclosure.