Check in baggage allowance?

I'm glad to interpret the rules for you.
Free allowance for checked luggage:
1. First-class and business cabins: 2 pieces of baggage at most and each should not exceed 32kg;
2. Economy cabin: 1 piece only and it should not weigh more than 23kg.
No matter which cabin, the dimension of each case should not exceed 158cm.
Free allowance for carry-on luggage:
1. First-class and business cabins: 2 pieces maximum and the weight limit is 8kg/per piece;
2. Economy cabin: 1 piece only and it should be less than 5kg weight.
You should pay for extra kilo, piece, or volume.