Yes, and the scorpion promises the frog that it won't sting. Politicians can say what they please, the actions of the state speak louder:
https://www.newsweek.com/china-map-borders-territory-dispute...
https://www.newsweek.com/russia-andrey-rudenko-responds-chin...
China will continue economically plundering Russia so long as it's in their favor; the Western sanctions mean that Putin's options for oil exports are limited.