Bush-Hammered Quartzite Treads from Canada
Quartzite treads with bush-hammered texture for enhanced grip in exterior stair applications. The mechanical surface working qualifies this under HTS 6802.99.00.70 as other processed quartzite building stone.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document bushing hammer specifications and coverage percentage for surface working proof
• Test coefficient of friction to validate safety claims for building approvals
• Specify intended exterior use to distinguish from interior decorative finishes