Scope 
 1 for 1 and Zone 2 dangerous places. 
 2, for IIA, IIB explosive atmosphere. 
 Features 
 An aluminum alloy shell with plastic sprayed surface. 
 2, the overall structure for the composite shell is made of increased structure, with a strong waterproof, dustproof capabilities, built-in buttons, lights are explosion proof components. 
 3, pipe or cable wiring. 
 4, in line with GB3836-2000. IEC60079 standards.