China is squeezing North Korea - but not to hard

President Trump wants China to pressure North Korea over its nuclear weapons program. China has a huge influence over the North Korean economy.They account for more than 80% of its foreign trade and serves as the main gateway to the outside worlds.Trump tweeted on Friday "China is very much the economic lifeline to North Korea so, while nothing is easy, if they want to solve the North Korean problem, they will,".
I think with this problem now that Trump is right. If china does want to stop this they will. They have a bigger upper hand then they think, but at what cost. North Korea is known for their short temper so we will have to see how long until their next tantrum.