Our company produces the outdoor permanent magnetic vacuum circuit breakers, integrated domestic and foreign advanced technology, integration \"intelligent, energy saving, environmental protection, freevilta\" design concept, combined with the actual situation of my country's distribution network and the construction requirements of smart grid construction, Secondary fusion technology, developing a new generation of outdoor intelligent vacuum circuit breakers with independent intellectual property rights. It has been widely used in more than 20 provinces and municipal autonomous regions in the country and around the world, withstanding the extreme cold (Heilongjiang and Russia), high altitude (Qinghai), dramatic temperature difference (Xinjiang), salt fog (Guangdong), wet heat (Philippines), etc. The test of harsh climate conditions has been widely praised by customers. The company has formed long-term cooperation with the National Grid and Southern Power Grid, but also provides a complete set of system solutions for domestic counterparts to promote my country's grid intelligence to add bricks.