Hi Arno:
IIUC, the OP is working on ICAO EPWR for MSFS 2020 (see the texture Material names in the ZIP containing the OBJ file above).
While we admire everyone's efforts to learn English, getting help from folks here in the English speaking forum at FSDEV who are already quite limited on free time, may require use of a translation service:
{URL]https://www.google.com/search?q=translate+polish+to+english&client=firefox-b-1-d&hs=1uk&sca_esv=ec2bff8bd1e2ef21&ei=xJ4xaqLFFarHp84PlN68iAM&biw=560&bih=287&oq=translate&gs_lp=Egxnd3Mtd2l6LXNlcnAiCXRyYW5zbGF0ZSoCCAAyCxAAGIAEGIoFGJECMhAQABiABBiKBRhDGLEDGIMBMgsQABiABBiKBRiRAjILEAAYgAQYigUYkQIyCxAAGIAEGIoFGJECMggQABiABBixAzIQEAAYgAQYigUYQxixAxiDATILEAAYgAQYsQMYgwEyCBAAGIAEGLEDMggQABiABBixA0iKbFAAWP5icAB4AZABAZgBbqABqAaqAQQxMS4xuAEByAEA-AEBmAILoAKnBsICDhAuGIAEGLEDGMcBGNEDwgIOEAAYgAQYigUYsQMYgwHCAg4QLhiABBiKBRixAxiDAcICBRAAGIAEwgIREC4YgAQYsQMYgwEYxwEY0QPCAgsQLhiABBixAxiDAcICDhAAGIAEGIoFGJECGLEDwgIMEAAYgAQYChgLGLEDwgIPEAAYgAQYChgLGLEDGIMBmAMAkgcEMTAuMaAHgFuyBwQxMC4xuAenBsIHBjItMTAuMcgHOoAIAQ&sclient=gws-wiz-serp[/URL]
I suggest the OP use Google Translate to state his goal.
IIUC, he wants to make Ground Markings in MSFS 2020 from a 3D model in Blender.
BTW: He referred to use of MCX with ExecTI (TI=TrustedInstaller) apparently because I had mentioned it in the thread cited here:
https://www.fsdeveloper.com/forum/threads/mcx-fails-to-read-mdls-in-rjer_modellib-bgl.460930/
AFAIK, he may also have been successful using the latest MCX DevRel
without ExecTI.
GaryGB