7325.10.00.10 - Manhole covers, rings and frames

This classification pertains to manhole covers, rings, and frames that are cast from nonmalleable cast iron. These articles are essential components of underground infrastructure, designed to cover and provide access to manholes, utility vaults, and similar access points. The key characteristic for classification here is the material composition of nonmalleable cast iron, implying a material that is brittle and cannot be deformed without fracturing, differentiating it from malleable iron.

When classifying within the "Other cast articles of iron or steel" heading at the 7325.10.00 level, it is crucial to distinguish manhole covers, rings, and frames from sibling categories. For instance, catch basins, grates, and frames (7325.10.00.20) are primarily designed to collect and convey surface water, often featuring open grate designs for drainage. Similarly, cleanout covers and frames (7325.10.00.25) are typically used for access to plumbing or sewage lines for cleaning purposes and may have different structural requirements. Valve and service boxes (7325.10.00.30) and meter boxes (7325.10.00.35) serve distinct functions related to housing and protecting valves or utility meters, respectively, and are thus classified separately based on their specific purpose and design.

As this is a leaf node in the HTS classification system, there are no further subcategories under 7325.10.00.10. Therefore, classification decisions for items falling within this code will rely heavily on a precise determination of their physical characteristics and intended use as manhole covers, rings, or frames, made specifically from nonmalleable cast iron. Any deviations in material (e.g., ductile iron, steel) or function would necessitate classification under a different HTS code.