It seems as if the website has been removed and that had some pictures of the internal components.
Here is a basic rundown of how they were made:
Body -
Aluminum tubes cut to length for body
Baseplates cut to size and hole drilled for stem.
Stems cut from length of thin walled tubing.
Baseplate welded(?)/soldered onto body as well as stem
Welds cleaned up.
Internals -
Thin aluminum plates cut to fit inside the body snugly.
One set has small arms bent down at the corners while the others arms fit into them. Space of around 2 mm between plates. Small gap on top plate with small gap on bottom plate for airflow.
Stack to the top and then add a plate with a cutout for airflow and secure.
Here is a basic diagram of the plate design. As you can see you will need to bend the legs down on the one plate, the length of the legs will give you the gap between the plates.
Stack them with the cutouts opposite so the airflow through all the plates. This is the key to this vape, a very long airpath to heat it up and maintain the heat.
Hope this helps!!