... 270 * L.640 Weight:5.76KG Explosion-proof sign:Ex deII B T4/T6 Explosion-proof metal halide 70WSize:dia.270 * L ... .640Weight:5.76KGExplosion-proof sign:Ex deII B T4/T6To satisfy petrochemicals, oil ... field, railway, steel, electric power, public security lighting and other needs, Our explosion-proof lamps are anti-explosion ,energy ...