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LYMFB Explosio-probatio obsignatio incrustatio
Usus est ut explosio-probatio solitudo obsignatio pro instrumento tubo vel cable wiring.
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AC series Explosion-probationis fulmen
1. Periculosa: divisio 1&2 vel zona 21、22;
2. Atmosphaerae explosivae vel vaporis: classis A, B, Ⅱ C atmosphaerae pulvis-mabiles;
3. Indoor or velit;
4.Temperature classis: T1~T6.
