brake line and flare type

Does anyone know off hand what type of line (American/Euro/***/British) and flare is used from the brake master cylinder down to the ABS unit?

Shoebox has some info on the sizes/threads of the metric connectors on his website. The flare is a unique GM "bubble" flare.

http://shbox.com/1/brake_pipes_frt.jpg

Thanks, Sorry about posting in the wrong section. I didn't even realize there was a brake section.