Harmonized System Code Classification

The first two digits of the HS code "55" represent steel.

Specifically, Chapter 55 covers the following steel products:

• Semi-finished products of iron and steel: such as plates, bars, sections, wires, etc.
• Flat-rolled products: including hot-rolled, cold-rolled, galvanized, and other flat-shaped steel products.
• Steel pipes: various diameters, wall thicknesses, and materials of steel pipes.
• Other steel products: such as angle steel, channel steel, ribbed steel, steel nails, steel ropes, etc.

Therefore, if your product is a steel material or a steel product, its HS code is likely to start with "55".

To determine the classification more accurately, you also need to consider the specific material, shape, use, and degree of processing of the product.

First four digits explanation:
5509

Synthetic short staple yarn (not for sewing), not in retail packages.

Six-digit explanation:
HS code: 5509.51

Classification: Synthetic short staple yarn (other than sewing thread), not in retail packages:

Specific meaning: Other yarns, mainly or solely blended with man-made short fibers: multi-filament (folded) or rope yarn (607)

8-10 digits explanation:
HS code: 5509516000
Classification:
Synthetic short staple yarn (other than sewing thread), not in retail packages:
Other yarns, mainly or solely blended with man-made short fibers:
* Multi-filament (folded) or rope yarn (607)
Explanation: This HS code belongs to synthetic short staple yarn, not in retail packages, mainly or solely blended with man-made short fibers, and is multi-filament (folded) or rope yarn.

Examples of products:
Synthetic short staple yarn for industrial use
Multi-filament synthetic yarn for rope making
Blended synthetic yarn used in non-woven fabrics
Synthetic short staple yarn used in the production of carpets
* Synthetic yarn for non-sewing applications, such as industrial textiles