Transit Baggage claim and China eastern airlines baggage regulations

Can we claim our baggages at transit?
If we claim our baggages from chinaEastern at 24h transit,Are they check our baggages again
And
what are the rules and not allow things to take from china to next flight….
(Alcohol/ Batteries )
(From Japan > china 24h transit > To Srilanka)
And can you tell me about transit baggage claim