6 9 | 12 | 15 | 30 | | 1. | | | 2. 2 ~ 3 1 | | 3. | 15% ~ 25% | | 3 | 3:6:1 5 | 2 : 5 : 1 : 1 | | | | | | | 1. | 2kg | | 2. | | | | 3. | | |