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MEDC DB5系列防爆揚(yáng)聲器92分貝 應(yīng)用范圍：危險(xiǎn)場(chǎng)所、普通場(chǎng)所 產(chǎn)品認(rèn)證：ATEX BAS00ATEX1259X Ex ia IIC T4 Ga 防護(hù)等級(jí)：IP65

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