Xingyu electronic acoustic remote strong sound system to join Yunnan a border post in the border defense

A Xinjiang rape planting base for farm injury prevention by Xingyu electronic remote strong sound orientation system

A prison in Hubei uses a series of sound system products to warn and shout

The third military and civilian integration development exhibition of hi-tech equipment opened in Beijing

To the development of civil military integration focus on key areas to promote the overall level of lifting force

U.S. diplomats in Cuba or encounter mysterious