Batch - Get System Language of current running System

I am trying to get the current setted system-language under use of wmic, but i don´t know why my code here is kind of "broken"...
The readback info from wmiccontains a lot of spaces and CRLF´s. Therefore i wanted to cut all that out in the loop, but the syntax is not proper in my example...

@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
:MAIN
setlocal
call :Get_System_Language "lang"
echo lang=%lang%
pause
exit /b 0

:Get_System_Language
setlocal
::Windows Language Code Identifier
::1031 German Germany
::2057 English United Kingdom
::1033 English United States
set "language=NUL"
set /a num_languages=3
for /f "tokens=1,2 delims==" %%a in ('wmic os get OSLanguage /Value') do (
    if "%%a" equ "OSLanguage" (
        set "item_tmp=%%b"
        set "value=!item_tmp:=!"
        if "!value!" equ "1031" (
            set "language=german_germany"
        )
        if "!value!" equ "2057" (
            set "language=english_british"
        )
        if "!value!" equ "1033" (
            set "language=english_american"
        )
        (endlocal
            if "%~1" neq "" (set "%~1=!language!")
        )
        exit /b 0
    )
)
exit /b 1

Do you see the Problem?

Thank´s a lot ;-)

Split by = then one more loop to remove CRLF

Example:

@echo off
for /f "tokens=2*delims==" %%i in ('wmic os get OSLanguage /value') do for %%f in (%%i) do (
    if "%%~f" == "1031" set "Lang=german_germany"
    if "%%~f" == "2057" set "Lang=english_british"
    if "%%~f" == "1033" set "Lang=english_american"
)
echo %Lang%