Do you think China would buy things, via Russian money, that will ultimately end up in Russia?
Do you trust all countries to abide by the sanctions imposed?
What about shell corporations with their country of origin not being in Russia?
From what I read, chip production is behind orders (there’s so much demand), so even if Russia secretly sent an order via a bogus company, there would still be a long delivery delay
China could send them some of their own in-house stock, but then China is depleting their own supply of these important components ... and since China is planning to invade Taiwan at the earliest opportunity, they probably want to have as much stock on hand as possible