Find HS Code and trade information for roll rod

Here's a classification of "roll rod" based on the provided data, aiming for 5-10 relevant HS codes:

• 7213100000: Bars and rods, hot-rolled, in irregularly wound coils, of iron or nonalloy steel: Concrete reinforcing bars and rods. (72: Iron and steel, 13: Mill products of iron or steel. This code specifically covers hot-rolled bars and rods used for concrete reinforcement.)
• 7213913011: Bars and rods, hot-rolled, in irregularly wound coils, of iron or nonalloy steel: Other: Of circular cross section measuring less than 14 mm in diameter: Not tempered, not treated and not partly manufactured Tire cord-quality steel wire rod of a kind described in statistical note 5 to this chapter. (72: Iron and steel, 13: Mill products of iron or steel. This is for smaller diameter, untreated steel wire rod, often used for tire cord.)
• 7214990016: Other bars and rods of iron or nonalloy steel, not further worked than forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling: Other: Other Rounds: Containing by weight less than 0.25 percent of carbon: With a diameter less than 76 mm. (72: Iron and steel, 14: Other bars and rods. This is for round bars with low carbon content and smaller diameter.)
• 7214990021: Other bars and rods of iron or nonalloy steel, not further worked than forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling: Other: Other Rounds: Containing by weight less than 0.25 percent of carbon: With a diameter of 76 mm or more but not exceeding 152 mm. (72: Iron and steel, 14: Other bars and rods. This is for round bars with low carbon content and larger diameter.)
• 7326110000: Other articles of iron or steel: Forged or stamped, but not further worked: Grinding balls and similar articles for mills. (73: Articles of iron or steel, 26: Other articles. If the "roll rod" is intended for use as grinding media, this code applies.)

Important Considerations:

• Material: Confirm whether the roll rod is made of iron or alloy steel. This impacts the correct HS code.
• Processing: Determine if the rod is simply hot-rolled, or if it has undergone further processing (forged, stamped, twisted, etc.).
• Diameter & Carbon Content: The diameter and carbon content are crucial for differentiating between codes within the 7214 series.
• Intended Use: The specific application of the roll rod (e.g., concrete reinforcement, grinding media, general purpose) can help narrow down the correct classification.

Tax Rate Notes:

• Codes starting with 72 generally have a base tariff of 0.0%, but may be subject to additional tariffs (currently 30% after April 2, 2025).
• Codes starting with 73 may have varying tariffs, as seen in the examples (25.0% or 80.0%).

Please provide more details about the roll rod's characteristics to ensure accurate classification.