The Creality CR-Laser Falcon 10W, although a powerful and accurate laser engraver, is not specifically designed to engrave materials such as aluminium. Here are some key points to consider:

- Supported materials: The machine is optimal for engraving and cutting materials such as wood, acrylic, paper, and leather, but is not suitable for hard metals such as aluminium.
- Power and technology: The focal point compression technology and 10W power are effective for organic materials and some plastics, but not sufficient for engraving dense metals.
- Safety and limitations: Engraving metals with this type of laser engraver could also be dangerous and is not recommended, as it could generate dangerous particles and not guarantee accurate results.

If you need to engrave serial codes on an aluminium plate, you might consider a laser engraver specifically designed for metals or other engraving technologies more suitable for this purpose.