What kind of special access has Iran given to China. Just tell me?
It hasn't, this is just the potential. Remember China voted to support American led sanctions on Iran? China has used the Iran card very successfully in negotiations with the Americans. China has always chosen to give the Americans face by supporting their sanctions and distract them from attacking China. Same story as for north Korea. But now that we're in a cold war again, there's no more benefit in supporting American sanctions.
Chinese companies were awarded some infrastructure projects in Iran like HSR and developing gas fields, but progress has been slow. Iranian bureaucracy and Chinese hesitancy to work with Iran are both to blame.
What kind of innovation is Iran bringing to the table? Com'on give a few examples. Saudi Arabia is very useful because it's a perfect match for China in terms of energy for technology. Angola and Venezuela works because they provide China with energy and give very little problems.
Has Iranians really been respecting Chinese cars or are they still waiting on the Europeans?
Iran has some space and missile technology, arms manufacturing, petrochemicals and nuclear energy and I'm sure others related to heavy industry. Obviously China is more advanced in all of these areas, but that's the opportunity. China can provide parts and machines. There's much more value added in high wage Chinese jobs in industrial equipment and components than in cheap energy, which Iran is also providing to China secretly. The opportunity is there, China just needs to dare to take it, even if it's going to offend westerners.
In terms of scientific publications, Nature ranked Iran 32nd and Saudi 30th, but of course there is a systematic bias against non western researchers. The same article will be published much better if the author is American than if he is Iranian (or Russian). If you correct for that, the quality of Iran's research is far above that of Saudi Arabia.
Also, Saudi Arabia doesn't do its own innovation, they pay foreigners to live there so their output counts as Saudi. Just look at the faculty at KAUST
Why do you care so much about "respect" for Chinese products? The main Chinese cars assembled by Iranian companies are Haima SUVs made by Iran khodro and brilliance cars made by saipa. I don't have sales numbers.
Venezuela gives very little problems? Problems like being unable to pay back their debt?
Russia and China relationship works because both sides have a lot to offer and have a shared vision. NK is a decade old ally of China that will stick with China through thick and thin. Iran has no real history with China. It does not buy weapons from China. It's only working with China because it has no other choices. It will leave China the moment Europe even bats an eye at it.
I don't know why you put Cuba and Saudi Arabia in the same sentence. One is an order of magnitude more important to China than the other. But in the case of Cuba, at least it has decades of history with China due to communism and that alone deserves respect from China. Iran has no historical link with China.
No, North Korea won't stick with China no matter what. They were very quick to seek a deal with Trump when offered. Not surprising, since China has supported sanctions on North Korea and before Trump was very reluctant to support Korea.
Did you know that there was an arms embargo on Iran, which China supported? They couldn't buy Chinese weapons. However, Iran is one of the few countries that do military exercises with China. It's always useful to get the perspective from a different military on your own tactics.
Cuba was not a friend, they were very close to the Soviet Union. I mention them because they have some competence in healthcare.
There really aren't many countries with a positive historical link with China. Korea, Vietnam and Japan plus Mongolia have a positive historic link. Russia and western Europe and America have exploited China when it was weak. But today, cooperation is strong with any country willing to cooperate.
Actually, a lot of countries are now working with China because the product quality is really good. Maybe you want to take a look at Pakistan and Thailand or even Saudi Arabia and UAE. All dying to work with China and bringing in Chinese tech companies in.
Iran also wants Chinese technology, but sometimes the sanctions cause problems. Remember Huawei's Iran business? Many Chinese companies are not willing to risk entering the Iranian market. That's something the government could work on. If you can invest in Russia, you can also invest in Iran.
I think you'll find that all of these countries want both Chinese and Western technology.
I just explained why Iran is not a good fit for China. That's why they are a transactional friend. Nothing more. China has real friends like Pakistan, Russia, much of southeast asia, Bangladesh, central asia and many african countries.
Southeast Asia is a friend to China? Is your memory this short? Anti Chinese riots in Indonesia? South China sea dispute? American bases? Bangladesh is closer to India than China. Russia and Pakistan are real friends today. Iran probably won't be China's closest ally, but it's willing and able to fight against American hegemony in its region. Imagine a future situation where the GCC flips to China and Iran flips back to the US. With Israel, Turkey and Iran on one side, who will dominate the region?
Why do you think Pakistan is so pro China? It's not just that they have a common enemy. China has fairly selflessly invested huge sums in Pakistan, just like American marshall aid to Europe. If you want others to like China, you have to put in some effort