We know that the explosion-proof system in North America is very different from that in China/IEC/EU regions. Not only do they implement different standards, but their explosion-proof markings are als……
The North American Explosion proof Certification System (NEC system) has significant differences from China's national standard system supported Explosion proof Certification System (GB system) in ter……
.jpg "Differences Between North American Ex Marking and the IEC/GB Ex Marking")
.jpg "Differences Between the North American and the China/IEC Ex Certification System")
