Both are communist regimes, anti-nationalist.
However Chinese regime is a communist ateist regime which accepted capitalism and opened up it's economy and accepts Chinese nationalism. They saw that communism means misery and is a failed Idea.
In Iran we've communist Shia muslims in power who are fierce against capitalism. After 40 years of failing our country and economy they don't stop blaming capitalism.
Khamenei is basically saying buy even shit instead of gold (for same or higher price) if it's made in Iran, because our workers produced it. For example they produce this suicide-car named "pride" and people become paralyzed for the rest of their life and state oil money has to pay their healthcare. All of that because of a shitty communist Idea of "protectionism at whatever price".
Also we've many stupid people who buy this car because it's cheap and then with the rest of money they saved they go to holidays in turkey or enemy country saudi arabia (haj) instead of paying more to buy a saver car.
The communist-muslim regime in Iran has been a disaster on different fronts: economy, culture, Corruption, environment, peoples life, their way of thinking. Many people have become stupid under their rule.