Harmonized System Code Classification

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

Specifically, this chapter includes the following main contents:

• Steel structures: 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, steel nails, bolts, nuts, etc.
• Other iron and steel products: For example, springs, chains, fasteners, tools, etc.

Reason for classification:

The establishment of the "73" chapter is to classify and manage various products made primarily of iron and steel, which usually have the following characteristics:

• Main material is iron and steel: The core component of the product is iron and 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 can appear in various forms and functions.

Therefore, the first two digits of the HS code "73" are used to identify and classify all products made primarily of iron and 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: HS code 7308 represents the classification and meaning as follows:

Classification: Steel structures and parts thereof

Meaning: Includes:

• Structures (excluding prefabricated buildings under tax number 9406) and their parts, such as bridges and bridge sections, lock gates, towers, lattice masts, roofs, roof frames, doors and windows and their door and window frames and thresholds, shutters, railings, columns and pillars.
• Steel plates, bars, angles, sections, profiles, tubes, etc., prepared for structures.

Explanation of the six digits: HS code: 7308.30

Classification: Steel structures and parts thereof (e.g., bridges and bridge sections, lock gates, towers, lattice masts, roofs, roof frames, doors and windows and their door and window frames and thresholds, shutters, columns and pillars)

Specific meaning: Doors, windows and their door and window frames and thresholds; others --> others

Explanation of the 8-10 digits: HS code: 7308301000
Classification: Steel structures and parts: doors, windows and their door and window frames and thresholds (excluding prefabricated buildings under tax number 9406)
Explanation: Refers to parts of steel structures, especially doors, windows and their door and window frames and thresholds, but excluding those classified under tax number 9406. This classification specifically refers to doors, windows and their door and window frames and thresholds made of stainless steel.

Product examples: * Stainless steel door frames * Stainless steel window frames * Steel door thresholds * Steel window thresholds * Steel door and window parts for buildings * Steel parts for bridge construction * Steel parts for tower structures * Steel parts for roof frames