Global Network reporter Wang Huan reported , according to Japan’s Institute used a new type of plutonium for nuclear weapons test .
Reported that this is the U.S. following the November 2010 and March 2011 , after the third nuclear weapons tests . The trial did not take gunpowder devices are sub-critical nuclear tests. The nuclear test conducted with the previous characteristics of the same test used in weapons-grade plutonium , highly enriched uranium and other nuclear mate