## Common ground
All options are types of interior window treatments or decorative fabric coverings used in homes or buildings.
## Options at a glance
**3925.30 – Plastic material**
- **Defining trait:** Made primarily from synthetic plastic, often rigid or semi-rigid.
- **Typical examples:** Plastic blinds, vinyl window shades, shower curtains (if used indoors).
- **Best fit when:** The product is non-textile, durable, and moisture-resistant; not woven or soft.
**4421.99 – Wood**
- **Defining trait:** Constructed from solid or laminated wood slats or panels.
- **Typical examples:** Wooden blinds, wooden shutters, wooden valances.
- **Best fit when:** The product is made of natural or engineered wood with visible grain and structure.
**6303 – Textile material**
- **Defining trait:** Made from woven, knitted, or non-woven fabric (e.g., cotton, polyester).
- **Typical examples:** Fabric curtains, sheer drapes, bed valances, soft blinds.
- **Best fit when:** The product is flexible, soft, and made of traditional textile fibers.
**7019.6X,7019.7X – Woven glass fabrics**
- **Defining trait:** Made from woven fiberglass, often used for durability and light control.
- **Typical examples:** Heat-resistant window shades, industrial blinds, fire-retardant curtains.
- **Best fit when:** The product is heat-resistant, flame-retardant, or used in high-heat environments.
**7616.99 – Aluminium**
- **Defining trait:** Made from aluminum slats or sheets, typically for modern, sleek blinds.
- **Typical examples:** Aluminum mini-blinds, venetian blinds, reflective window shades.
- **Best fit when:** The product is metallic, lightweight, and often used in commercial or modern interiors.
## Key differences
| Option | Material Type | Flexibility | Heat Resistance | Common Use Case |
|-------|----------------|--------------|------------------|-------------------|
| 3925.30 | Plastic | Rigid/semi-rigid | Low | Moisture-prone areas |
| 4421.99 | Wood | Rigid | Moderate | Traditional decor |
| 6303 | Textile | Flexible | Low | General interior decoration |
| 7019.6X,7019.7X | Glass fabric | Semi-flexible | High | Fire/heat safety |
| 7616.99 | Aluminum | Flexible (slats) | High | Modern, durable blinds |
## How to choose
- Is the product made of plastic or vinyl? → 3925.30
- Is it made of wood slats or panels? → 4421.99
- Is it soft, woven fabric (e.g., cotton, polyester)? → 6303
- Does it contain fiberglass and resist heat/fire? → 7019.6X,7019.7X
- Is it metallic with aluminum slats? → 7616.99
## Overlaps & pitfalls
- A fabric curtain with aluminum slats could fit both 6303 and 7616.99; prioritize **material composition** over appearance.
- Plastic blinds may resemble textile ones—check if material is flexible or rigid.
- Woven glass fabrics are rare; ensure the product is truly fiberglass, not just a glass-like look.
- If unsure, identify the **primary material** (e.g., fabric vs. metal vs. plastic)