Uncovered Twin XL Innerspring Mattress Assembly
An innerspring core for twin XL mattresses featuring Bonnell coil springs encased in a wire grid framework, supplied without upholstery. Classified in HTS 9404.29.90.50 for its steel innerspring construction as an uncovered unit for further bedding manufacturing. It excludes any cellular rubber, plastics, or external coverings per chapter exclusions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made primarily of cellular rubber or plastics
Mattress innersprings of rubber/plastics shift to specific headings, excluding steel-dominant units.
If for bulk wire springs not assembled into units
Unassembled or loose springs are classified as stranded wire products, not bedding components.
If designed for specific open coil types like continuous wire
Certain innerspring configurations have distinct subheadings within the mattress supports category.
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Import Tips & Compliance
• Include engineering drawings showing innerspring design to confirm classification away from general metal goods
• Ensure compliance with U.S. safety standards for springs; test reports may be required for flammability if later upholstered
Related Products under HTS 9404.29.90.50
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