Can domestic air-conditioning maintenance workers go to work in Australia without going to school in Australia?

I'm in Australia, and I can hardly do it. Many air-conditioning repairs need English, and the technology is excellent. The company can guarantee you. But most of the companies are ghosts, and there are few people in China. Generally speaking, you will have no problem with excellent English, but most people who work can't speak English. Moreover, it is not a good idea to go abroad now, and the agency fee is high and the consumption is high, which is really unbearable. After all, you were not born and bred.