How to identify length of military service and his rank as a soldier?

If you want to know his length of military service, add up all the marks on his name tag, and it is his length of military service. If you are a soldier, a candidate can be judged by his epaulettes. If he is a soldier, he is a soldier for one year. Two crutches are first-class soldiers, and two-year soldiers are hard to judge. Only roughly divided. First-class officers and soldiers are 3-5 years old, second-class officers and soldiers are 6-8 years old, and third-class officers and soldiers are 9- 1 1 year old. The age of the epaulettes of the third-level officers and men is 9- 12 (one flower, one thick, one thin), and they are all above 10. Because they were soldiers before the reform of the military service law, their age is not easy to determine. In other words, it depends on his qualifications and identity.