## Common ground
All options are roulade needles, used for winding or shaping dough in baking.
## Options at a glance
**7323.93 – Iron/steel**
- **Defining trait:** Made from iron or steel, offering high durability and heat resistance.
- **Typical examples:** Industrial pastry rollers, heavy-duty roulade tools.
- **Best fit when:** Needing long-lasting, robust tools for frequent or commercial use.
**7615.20 – Aluminium**
- **Defining trait:** Made from aluminium, lighter and less prone to rust than steel.
- **Typical examples:** Home kitchen roulade needles, non-stick baking accessories.
- **Best fit when:** Prioritizing lightweight handling or avoiding corrosion in moist environments.
## Key differences
| Feature | 7323.93 (Iron/Steel) | 7615.20 (Aluminium) |
|------------------|------------------------|-----------------------|
| Material | Iron/steel | Aluminium |
| Weight | Heavier | Lighter |
| Corrosion resistance | Low (may rust) | High |
| Durability | Very high | Moderate |
## How to choose
- Is the needle for heavy or commercial use? → 7323.93
- Do you need it lightweight and rust-resistant? → 7615.20
## Overlaps & pitfalls
A roulade needle could technically fit both if it’s aluminium-coated steel, but the primary material determines classification. The key is the dominant material: use 7323.93 for iron/steel cores, 7615.20 for aluminium bodies. No clear priority—choose based on the product’s main material