适用范围 1. For the dangerous sites with explosive air mixture: 1 division、2 division; 2. Flammable gas, steam class:ⅡA、ⅡB、ⅡC; 3. Temperatures classification:T1~T6; 4. Indoor and outd
适用范围 1. For the dangerous sites with explosive air mixture: 1 division、2 division; 2. Flammable gas, steam class:ⅡA、ⅡB、ⅡC; 3. Temperatures classification:T1~T6; 4. Indoor and outdo