Harmonized System Code Classification

The first two digits of the HS code "73" represent iron and steel products.

Specifically, this chapter covers the following main contents:

• Steel structural components: For example, bridges, buildings, towers, etc.
• Cast iron products: For example, pipes, pipe fittings, radiators, etc.
• Steel products: For example, steel plates, steel pipes, steel wires, nails, bolts, nuts, etc.
• Other iron and steel products: For example, springs, chains, fasteners, cutting tools, etc.

Reason for classification:

The establishment of the "73" chapter is to classify and manage various products made primarily from iron and steel. These products typically have the following characteristics:

• Main material is iron or steel: The core component of the product is iron or steel.
• Wide range of applications: Iron and steel products are widely used in construction, machinery, transportation, energy, and other industries.
• Different manufacturing processes and product forms: Iron and steel products can be manufactured through casting, forging, rolling, welding, and other processes, and they can take various forms and functions.

Therefore, the first two digits of the HS code "73" are used to identify and classify all products made primarily from iron or steel.

If you can provide a more specific HS code (e.g., 7304, 7310, etc.), I can provide a more detailed classification explanation.

Explanation of the first four digits: 7302: Railway or tramway track laying materials, iron or steel: rails, guides, switch points, switch rods, crossings, switch points, switch rods, other crossing parts, sleepers (track frames), fish plates, rail seats, rail wedges, base plates, rail clamps, sleeper plates, rail connecting and fixing materials, etc.

Explanation of the six digits: HS code: 7302.90

Classification: Railway or tramway track laying materials, iron or steel: tracks, rerailers, rack rails, switch points, crossings, switch rods, other crossing parts, sleepers (track frames), fish plates, rail seats, rail wedges, base plates, rail clamps, sleeper plates, rail connecting parts, and other materials specifically used for connecting or fixing tracks.

Meaning: This HS code covers iron or steel materials used for railway or tramway track laying, including tracks, rerailers, rack rails, switch parts, sleepers, connecting parts, etc., as well as other materials specifically used for connecting or fixing tracks.

Explanation of the 8-10 digits: HS code: 7302909000
Classification: Railway or tramway track laying materials, including: rails, rerailers, switches, switch points, crossings, connecting rods, other crossing parts, sleepers (track frames), fish plates, pads, wedges, base plates, rail clamps, sleeper plates, rail connecting parts, and other materials specifically used for connecting or fixing rails.
Explanation: This HS code belongs to the classification of railway or tramway track laying materials, specifically the "other: other" category, covering rails, rerailers, switches, and other materials, as well as other materials specifically used for connecting or fixing rails.

Examples of products under this HS code: - Steel rails - Rail fish plates - Switch points - Crossings - Rail sleepers - Rail clamps - Rail wedges - Rail connecting rods - Track base plates - Steel rail pads