It shall be the duty of the state executive committee of each political party to furnish to each county executive committee, not less than fifty (50) days prior to the election, the names of all state and state district candidates and all candidates for legislative districts composed of more than one county or parts of more than one county who have qualified as provided by law, and in accordance with the requirements of Section 23-15-333 a sample of the official ballot to be used in the primary, the general form of which shall be followed as nearly as practicable.