Applying for an Australian skills assessment as a Fitter-Welder does not necessarily require a qualification; this is dependent upon the country of your passport.
The Down Under Centre has access to Australia’s Country Education Profiles and can confirm if your qualifications will be recognised so you can complete your skills assessment as a Fitter-Welder and obtain a Skilled Visa to work in Australia as a Fitter-Welder
If you don’t hold any qualifications you can still move forward with your Australian Fitter-Welder skills assessment if you can provide 5 years of paid work experience.