right, 36 ga is the same like .410, another name in france is 12 mm shotgun. the call the .32 ga also 14mm shotgun cartridge.
12, 16, 20, 24, 28 , 32 nd 26 is available by more than one maker in europe.

https://fiocchi.com/en/catalog/your-passion/hunting.html?shotgun_rifled=6303

I think there is another firm in italy and in spain making them also

9 mm Flobert rimfire is made by RWS and Fioochi, the 6 mm Flobert rimfire was made the last time in the late 1980s by Fioochi

http://forums.nitroexpress.com/showflat.php?Cat=0&Number=383472&an=0&page=1#Post383472

there was onca a 9 mm CF shotshell , size like a 357 Max. case

14 ga was made up to WW 2, 18 ga up to WW 1

thats not all, look here under shotshells https://old.municion.org/