On September 30th September 28 solstice, the national security council team have visited the exhibition Expo in Atlanta, USA. The NSC congress & expo is the world's largest annual "must attend" safety, health and environment professionals.More than 100 years, professional to this event for industry leading technology, education, social opportunities, experiment, and the real products and services need to stay at the forefront, remain competitive in the industry. The expo customers we have established a new relationship with the United States, such as radian, solemn, EOTEX etc...We also learned a lot about the knowledge of the work in the United States standard. Here are some pictures from the expo.