## Common ground
Both options are components used in power-driven weaving machines—specifically, jacquard cards or heads that control thread movement.
## Options at a glance
**3926.90 – Made of plastic material**
- **Defining trait:** Constructed from synthetic polymer materials, offering durability and resistance to wear.
- **Typical examples:** Plastic punch cards, injection-molded jacquard heads, plastic control components.
- **Best fit when:** The product is designed for long-term use, high-speed operation, or harsh industrial environments.
**4823.90 – Made of paper or paperboard**
- **Defining trait:** Fabricated from cellulose-based materials, typically used in temporary or low-cost setups.
- **Typical examples:** Paper punch cards, cardboard jacquard templates, disposable control sheets.
- **Best fit when:** The product is intended for short runs, prototyping, or cost-sensitive applications.
## Key differences
| Feature | 3926.90 (Plastic) | 4823.90 (Paper/Paperboard) |
|---------------------|--------------------------|----------------------------|
| Material durability | High | Low |
| Reusability | Reusable | Often single-use |
| Operating environment | Suitable for high-speed, industrial use | Limited to low-stress, short-term use |
## How to choose
- Is the product designed for repeated or long-term use? → 3926.90
- Is it made from a flexible, lightweight material like cardboard or paper? → 4823.90
## Overlaps & pitfalls
A product may combine both materials (e.g., plastic frame with paper insert), but the primary material determines classification. If unclear, prioritize the **main structural or functional component**—plastic for durability, paper for disposability. No option is inherently more accurate; the choice depends on the dominant material and intended use