3919.10.20.30 - Not exceeding 5 cm in width

This HTS category, 3919.10.20.30, specifically classifies self-adhesive plates, sheets, film, foil, tape, strip, and other flat shapes of plastics, presented in rolls with a width not exceeding 20 cm, and further refined to those with a width not exceeding 5 cm. These are typically plastic materials coated with an adhesive on one side, designed for bonding surfaces. Examples include various types of plastic tapes used for sealing, packaging, or joining, where the narrow width is a defining characteristic.

This classification distinguishes itself from its sibling category, 3919.10.20.40, which covers other self-adhesive plastic materials in rolls exceeding 5 cm but not exceeding 20 cm in width. The critical differentiator here is the specific width limitation of 5 cm for the product. Therefore, a tape or sheet classified under this heading must definitively measure 5 cm or less in width, while the sibling category encompasses a broader range up to 20 cm.

As this is a leaf node, there are no further subcategories. Classification is determined by the combination of being a self-adhesive plastic flat shape, presented in a roll, with a total width not exceeding 20 cm, and specifically being no more than 5 cm in width. The length of the roll or the specific type of plastic is not a primary determinant at this level, but rather the physical dimension of the width of the material in its roll form.