1. Commendation level: Medal is the commendation given by any unit to individuals or units under its jurisdiction. Medal is a national award, which is awarded by the head of state or government to the commended individual or unit. The scope of awarding medals is wider and can be decided by each unit. The awarding of medals should be recognized and authorized at the national level.

2. Different meanings: the meaning of the medal is to commend the outstanding performance or contribution of an individual or unit in the unit or industry. The medal is awarded to people or things that have made outstanding contributions to the country or nation and have great social influence. It means that the meaning of medals is more solemn and important.