Manufacturing and mechanical establishments may furnish materials to be manufactured in whole or in part by home workers, if such establishments are located within the state and subject to inspection and supervision by said commissioner or other agencies, as authorized by the general statutes, for the protection of life and health. Such establishments shall record the names and home addresses of all persons to whom materials for manufacturing purposes have been furnished and all payments made to such persons for work thus performed. All such records shall be preserved at least three years. They shall be accessible, during the actual operating hours of such establishments, to said commissioner or his representatives upon presentation of properly executed credentials, in order that the inspection and supervision of home work as provided by § 31-30 may be conducted freely and expeditiously at the discretion of said commissioner.