Do you usually get a trough-ticket in Beijing when you travel International by Air China?

Hi,
I'm going to travel by Air China from Munich to Bejing arriving at 6:15am and leaving for Tokyo at 8:30am the same day. That means an International transfer. Do you usually get a trough-ticket when you travel International by Air China? Does that mean, I don't need to re-check-in my baggage? How do I know, if I'll get a through-ticket?