The addition of the Abu Mahdi would give Iran a cruise missile with a claimed range of 1,000km, Iranian state media claimed on Tuesday.
This would be North Korea's latest missile launch since it fired two ballistic missiles on Wednesday.
There are “dozens of missile bunkers” dug into this canyon, the Alma Research and Education Center says.
Putin stressed the importance of Russia's "triad" of nuclear forces that can be launched from land, sea or air.
Iran has expanded its missile program, particularly its ballistic missiles, despite opposition from the US and expressions of concern by European countries.
Qiao is in China and has not been arrested, prosecutors said. He faces charges including sanctions evasion, bank fraud and money laundering.