Width below 600mm combined with a thickness of 4mm or more defines this narrow, heavy-gauge hot-rolled strip category, which is commonly used in the production of agricultural equipment components, chain links, and certain structural profiles. The dimensional thresholds — both width and thickness — are the operative classification criteria, and a product that straddles the 600mm width boundary or the 4mm thickness floor may fall into an adjacent heading. Section 232 tariffs apply to this product as a steel mill article, and origin-specific antidumping orders may also be in scope.

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