Russia and China. Friends or Foes?

Russia and China apart from having differences on border and geopolitical issues such as the uighur and islamic extremism on that could spill and inflame russian borders from chinas soil and differently from the cold war era have a love hate relationship now which is their common counterbalance goal towards the US although China is less ostensibly and aggresively globalist in its ambition of power projection than Russia which understandably feels threatened by Washington on its very border and one main point in common now in the sino russian relationship is the one related to energy. Russia has all the oil and gas China needs, both are geographical contiguous and close, both are members of a common geopolitical bloc such as the Shanghai Organization and the BRICS what gives us the idea of an even if it not a very close at least a mutual interest relationship asimetrically diferent than the ones between Washington Beijing or Washington Moscow. Regarding to a possible confrontation my thought goes directly to Central Asia former belonging to the so called Near Abroad for Russia and now aggresively courted by Beijing in terms of energy alliances and business but in my point of view Russia and China are the two most important pivot states in the eurasian landmass leading the multipolar world currently on the making and if they are seriously planning to reach a point where they can establish even an alter system of world currency different than the dollar, then confrontation at least in the short term is totally discarded. The term of this could be contention and balance. Both countried have strength on the military field so as far as i can see there wont be a confrontation between Moscow and Beijing unless provoked by the White House on a already known divide and conquer strategy.