They tried that and it failed.time to work something out with Venezuela and invest more in their local economy
Yes, China should support any country working against the US. But Maduro doesn't have a good track record at leading his country. He was given a lot of money and has achieved little. Better to be careful
China probably doesn't want to have its whole financial system lose access to the West. But there could be a set of banks that only provide financial services to sanctioned countries. Just like China has specific oil refineries that specialise in sanctioned crude or tech companies that develop products specifically for the African marketI suppose as Chinese banking and Russia integrate, Iran will merge with China too?