Bags from USA to China

Hi, what is the policy on the baggage allowance for travellers from USA who travel within China for 2 weeks? The allowance from and to USA on Korean Airline is 2 bags per person at 50 lbs each. ( In Economy Class, customers are allowed 2 pieces of checked baggage. The maximum weight per piece is 23kg (50lbs), less than 158cm (62 inches) each and, not exceeding 273cm (107 inches) all together. ) How would these bags be treated during domestic travel in China?