Any person, firm or corporation offering for sale or selling to the state any paints, metal or metal culverts, fence or fencing, or any other materials or supplies for use upon or in the construction of any road or bridge or part thereof, shall, if requested, furnish therewith a certificate under oath, showing its purity, chemical constituents, and the percentage of impurities contained therein. Any person, firm or corporation knowingly making or furnishing a false certificate shall be guilty of perjury.
Any contract made by reason of any false statement or representation may be cancelled by order of the court.