For the dangerous sites with explosive dust mixture: 11 division.
爆炸性粉尘混合物危险场所：11区。
Dust explosive electric equipment and air explosive electric equipment temperature classes is the same.
粉尘防爆电气设备的温度组别与气体防爆电气设备的组别划分相同。
Dust explosive electric equipment and air explosive electric equipment temperature classes is the same.
粉尘防爆电气设备的温度组别与气体防爆电气设备的组别划分相同。
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