Explosion-proof box threading * Suitable for explosive gas atmospheres 1 and Zone 2 hazardous environments * Suitable for explosive IIA, IIB, IIC grade explosive gas atmospheres * mining for oil refining, storage, chemical, pharmaceutical, military and military facilities. BHC explosion threading box series aluminum alloy shell surface spray, beautiful appearance, divided by material: stainless-proof box threading, threading box cast iron proof, explosion-proof cast aluminum threading box, roughly divided according to port: straight, tee , Stone, left turn, right turn, the back elbow, the back tee, gold pass, pass, etc. corner. Explosion-proof box threading box threading model: BHC- □, can replace: BHC-, YHXe-, BG-, BCH- explosion threading box Features: 1. Aluminum alloy shell, surface spray, beautiful appearance 2. The structure forms. , user-friendly installation. 3. explosion threading box sealed structure, waterproof, dustproof effect. The proof box threading line with GB3836-2000, IEC60079, GB12476.1-2000, IEC61241 standards.