防火开关 meaning in English

emergency stovalve
fire cock
fire protection switch
fuel shut-off valve

Advanced technologies : with several national patents , due to resolving technological difficult problems in the field of switch and outlet across the world , dedo has become the only one enterprise developing and producing fireproofing switch and outlet , and its products enjoy insurmountable competitiveness
领先的技术：多项国家专利，解决了开关、插座领域世界性技术难题，成为了线路保护防火开关、插座研发、生产的唯一一家企业，产品竞争有不可替代的优势。