High-Burst Strength Core Board for Mailing Tubes from Canada
Uncoated paperboard exceeding 225 g/m² with superior burst resistance, supplied in rolls for spirally winding into protective mailing tubes. It fits HTS 4805.93.40.50 as dedicated tube and core board, not further worked beyond note 3 specs.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include Mullen burst test results to prove suitability for tubes; ensure declaration specifies 'tube/core board' not generic; check for import quotas on certain paperboard