Our center participated in the IECEx organization in 2011, the first world ability verification activities organized by the German PTB laboratoryin the field of explosion-proof technology, the activity  involved in 44 laboratories of  more than 20 countries.mostly verify world consistency and technology research about the "d" type and "I" type detection level.
    Zhu Shi’an(Intrinsically safe professional),Li Zhongqiang(Intrinsically safe professional) and Li Bing(Explosion-proof professional) took part in a group conference organized by PTB in German on July 16, this workshop is divided into two groups for discussion, the conference has a certain impact on our center’s track of international development in the field of explosion protection technology.