Harmonized System Code Classification

The first two digits of the HS code "73" represent 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, steel nails, bolts, nuts, etc.
• Other 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 of steel. These products typically have the following characteristics:

• Main material is steel: The core component of the product is steel.
• Wide range of application areas: Steel products are widely used in construction, machinery, transportation, energy, and other industries.
• Different manufacturing processes and product forms: Steel products can be manufactured through casting, forging, rolling, welding, and other processes, and 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 mainly of 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: 7317

Classification description: Nails, tacks, brads, staples (excluding those listed in Chapter 8305), and similar iron or steel products, whether or not having heads of other materials, but excluding those with copper heads.

Explanation of the six digits: HS code: 7317.00

Classification: Nails, tacks, brads, staples (excluding those listed in Chapter 8305), and similar iron or steel products, whether or not having heads of other materials, but excluding those with copper heads.

Specific meaning: Refers to products composed of two or more parts.

Explanation of the 8–10 digits: HS code: 7317003000
Classification: Iron or steel nails, tacks, brads, staples (excluding those listed in Chapter 8305) and similar articles, whether or not having heads of other materials, but excluding those with copper heads: → applicable to powder-actuated hand tools: → screws
Explanation: This HS code refers to iron or steel nails, tacks, brads, staples (excluding those listed in Chapter 8305) and similar articles, whether or not having heads of other materials, but excluding those with copper heads. More specifically, it applies to screws used in powder-actuated hand tools.

Examples of products: * Steel screws * Iron nails * Steel brads * Tacks with plastic heads * Staples for binding documents * Screws for powder-actuated tools