Time and cost of research and development of the elderly head

The research and development time of Laotouhuan is 4 years, and the cost is 65.438+0.8 billion RMB. The old man's ring refers to the Ardennes ring. According to the release conference of Ya Dun ring team, the production of Ya Dun ring was announced in 20 17, and went online in 20021. The development time is 4 years, and the research and development cost is 3.4 billion yen, with a value of1800 million RMB.