The symbol "U" in the explosion-proof certificate is used to represent the symbol of Ex components; The symbol "X" in the explosion-proof certificate represents a symbol for specia……
Explosion proof certification is actually a necessary test that most electrical products must pass and obtain certification certificates for. This is not only a guarantee of product quality promotion,……
.jpg "The meaning of U and X is indicated after the explosion-proof certificate number")
.jpg "Explosion proof rating and certification significance")
