I would be guessing this is a file created before version 17 - before Building Materials existed.
When you open this file in 17, or later then Archicad will automatically create these new Building Materials and gives them a 9 digit code after the name.
The BMs are based on your current wall composites, complex profiles, favourites and default tool settings.
The 9 digit number actually means something based on pen colours, priority strength and some other info from the source they are created from - I can't remember exactly what but it doesn't really matter.
You may also get the same numbers after composites line types and fills if Archicad has to create new ones automatically.
What do you do with them?
Just ignore them unless you are trying to set up a standard template.
But make sure the properties of these new BMs are what you want them to be - i.e. some may have no strength setting.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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