[1] It's primarily developed and distributed by Russian software company Top Systems.

Amongst features T-FLEX offers support for various CAD formats and diverse localizations.

[1] T-FLEX CAD provides parametric, adaptive and associative technology aimed at family-of-parts manufacturers or other design situations that use similar geometry but require many different sizes or permutations.

Variables can be assigned for component names, visibility, material, any numeric or text attribute of any entity.

grb T-FLEX CAD supports parasolid-compatible file formats, including:[5]