7606.91.60.55 - With a thickness of more than 6.3 mm

This HTS category, 7606.91.60.55, specifically classifies aluminum plates, sheets, and strip that are of a thickness exceeding 6.3 mm. These products are made from unalloyed aluminum and are clad, meaning they consist of a layer of aluminum bonded to another metal or alloy, or multiple layers of different metals or alloys. The primary characteristic defining this classification is the substantial thickness, distinguishing these as more robust forms of aluminum sheeting.

This category is distinguished from its sibling, 7606.91.60.95, by the precise thickness measurement. While 7606.91.60.55 covers items *more than* 6.3 mm thick, the sibling category encompasses those that are *6.3 mm or less* thick. Both are within the broader scope of clad, unalloyed aluminum plates, sheets, and strip, but the thickness threshold is the critical differentiator.

As this is a leaf node within the HTS, there are no further subcategories to introduce. Classification under this code is definitive once the criteria of being a clad, unalloyed aluminum plate, sheet, or strip with a thickness exceeding 6.3 mm are met. Examples of goods falling here might include heavy-duty structural sheeting used in construction or industrial applications, or specialized clad aluminum panels where a significant thickness is a functional requirement.