(BNG) explosion-proof flexible pipe connecting pipe,explosion proof,flexible pipe. E (BNG) explosion-proof flexible pipe Application1.Can be used in Zone 1 and Zone 2 dangerous places.2.Can be used in IIA,IIB,IIC groups explosive atmosphere.FeaturesFlame-withstand,corrosion-proof,waterproof ,anti-aging,good flexibility,rigid structure,satety and security.The length,thread size can be specially ...