Baggage Allowance and Transportation

We are group of 4 travelling from EmeiShan to Chengdu Airport by 1st ride in the morning of the High Speed train. Each one of us has one 20kg luggage (145cm or 157cm) and one 5-10kg carry-on. The group total are 4 baggage and 4 carry-on. We bought Business Class tickets: 1 on Seat 1F, and other 3 seats on Row 2. Is it ok to get all baggage and carry-on into the Business Class carriage?