Any person manufacturing for introduction, or first introducing into commerce a wool product shall affix thereto the stamp, tag, label, or other means of identification required by this subchapter, and the same, or substitutes therefor containing identical information with respect to content of the wool product or any other products contained therein in an amount of 5 per centum or more by weight and other information required under section 68b of this title, shall be and remain affixed to such wool product, whether it remains in its original state or is contained in garments or other articles made in whole or in part therefrom, until sold to the consumer: Provided, That the name of the manufacturer of the wool product need not appear on the substitute stamp, tag, or label if the name of the person who affixes the substitute appears thereon.