They are imposing sanctions - they have pulled of from some strategic investments, they limited electronics sales, they just don't make much fuss about it, because they aren't Americans.
As for the gas - it's quite probable that even before the war Russians were selling it at loss, purely to stay relevant. Which means China buying it hurts Russian economy more than keeping away. And of course it benefits China.
Besides - what exactly would be the point of isolating Russia altogether? A new USSR? Because that's precisely what Rashists want. China wants a pacified, but functioning vassal state instead. Or perhaps states, because there's no reason really for anything east of Ural to remain with Russia.
As for the gas - it's quite probable that even before the war Russians were selling it at loss, purely to stay relevant. Which means China buying it hurts Russian economy more than keeping away. And of course it benefits China.
Besides - what exactly would be the point of isolating Russia altogether? A new USSR? Because that's precisely what Rashists want. China wants a pacified, but functioning vassal state instead. Or perhaps states, because there's no reason really for anything east of Ural to remain with Russia.