The free baggage allowance (inclusive of checked and unchecked baggage) for one passenger with an adult or child ticket are: 40 kg for first class, 30 kg for business class, and 20 kg for economy class. The volume of the baggage should not exceed 40 cm * 60 cm * 100 cm.
For more details visit : http://www.juneyao airlines.com/Baggage/Baggage-Information