Scope of application 
 ■ Suitable for Zone 1, Zone 2 hazardous site. 
 ■ in II A, II B, II Class C explosive gas atmospheres. 
 Features 
 ■ with a flame retardant, corrosion resistance, water resistance, aging, flexible and firm structure; 
 ■ Flexible pipe length, thread sizes can be specially processed according to user requirements, such as the NPT thread, inch thread and other kinds of non-standard thread. 
 Technical parameters 
 ■ implementation of standards: to GB3836.1-2000, and GB3836.2-2000, IEC60079 
 ■ Explosion-proof mark: Exed II