spd for 24v signal; 3 wires; intrinsic safety: ex ia iic t4~t6
美元照片-正版商用图片1ia7ex-摄图新视界
举例如下:(8)gb标准中气体防爆标志,举例如下:ex(ia)Ⅱc t6的含义
in70 本安风速风量变送器.防爆标志:ex ia iic - 抖音
spd for 24v signal; 3 wires; intrinsic safety: ex ia iic t4~t6
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