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

Xingyu electronic acoustic remote strong sound system in counter-terrorism forces a SWAT combat outstanding stability

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

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

Dalian airport welcomes the special surveillance of bird strike prevention

U.S. diplomats in Cuba or encounter mysterious