How hard was this to see coming? They signed long term oil contracts last year. Now how exactly is China going to pay for that oil? This is your answer. How much will China help them with nuclear technology. How about missiles?
China will also be selling Iran electronics and other consumer items. China-Iran is a good fit. They both hate America as an enemy.
China has already sold them Cruise Missiles, Hou Dong Fast Attack Boats, Fighter jets and China has a huge Military advisory team in Iran