1.CBC51 Explosion-proof Operating Post 2.Can be used in Zone1and2 dangerous places. 3 output: ... 5.CE,CB,ISO9001 CBC51 Explosion-proof Operating Post CBC51 Explosion-proof Operating Post can be used in Zone1 and Zone2 dangerous ... , ⅡB group explosive atmosphere. in addition, CBC51 Explosion-proof Operating Post is suitable for IEC60079 standard request. CBC51 Explosion-proof Operating ...