Baggage transfer at Capital Airport

I am flying with a KLM ticket from Busan (South Korea) to UK via Beijing and Amsterdam. Will my luggage go straight through to final destination or will I have to claim baggage at PEK then check it in again? Normally my KLM flights send baggage all the way through but my last trip involved transfer at Shanghai and I had to collect baggage there and check it in again. Thanks for any help