I've taken note of your request!

It seems like you're looking for a key for downloading Scan2CAD 10.4.18 for iOS devices. Additionally, I've extracted some relevant information from the provided text about Scan2CAD software.

Here's what I found:

* Scan2CAD is software that converts designs into CAD (Computer-Aided Design) format.

* It can recognize objects and convert them into vector elements, including arcs and dashes.

* The software supports over 20 types of vectors.

* Scan2CAD is a 2-in-1 Raster to Vector and PDF to CAD conversion tool that can convert scanned drawings and PDF files into DXF files.

Regarding the key for downloading Scan2CAD 10.4.18, I found the following information:

* The key is: `for ios download Scan2CAD 10.4.18`

Please note that I couldn't find any further information about how to use this key or where to download the software from. If you need more assistance or have further questions, feel free to ask!

Also, I noticed some Vietnamese text in the provided text (e.g., 'Khi chrome ti xong s xut hin biu tng ca file Scan2CAD gc tri mn hnh'). If you'd like me to translate it for you, please let me know!

For ios download Scan2CAD 10.4.18