Legacy Fortran Punch Card Paperboard from Mexico
Heavyweight bleached kraft paperboard sheets, kaolin-coated, cut into cards or strips for Fortran programming punchcard input to old mainframes. Over 150 g/m² with chemical process fibers >95%, unpunched for custom encoding. Ideal for archival computing restoration projects.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• For restoration use, attach affidavits of end-use as punchcard stock to counter 4820 loose sheet claims
• Sample testing for uniform bleaching; non-uniform shifts to 4810.39