Jilin Longxin Electrical Equipment Co., Ltd. is located in Jilin City of Jilin province which is so popular named as River City in Northern China with Songhua River flowing zigzag through the city being surrounded by beautiful green bushy mountains in summer and ice crystals and rimed trees in winter. The Company covers an area of 50 thousand square meters, including the construction area of 30 thousand square meters. There are 380 employees in the Company with 12 senior engineers, 25 engineers, and 47 engineering and technical personnel. The Company has been awarded as High-tech Enterprise of Jilin City in Jilin Province Jilin Provincial Technological R & D Center, Enterprise in Honoring Contracts and Keeping Promises, Jilin Star Enterprise, and AA Credit Enterprise. The Company passed Quality Management System Certification of ISO9001, Environmental Management System Certification of ISO14001, and Occupation Health and Safety Management System Certification of GBT28001. The product of electrical insulators have filled the blank of its industries in Jilin Province, and has become the largest production base of composite insulators in Northeast China.
The Company, taking the advantage of close availability of organosilicon cyclic compounds supplied by PetroChina Jilin Petrochemical Company that established annual production capacities of 1500 MT methyl vinyl silicone rubber and 3000 MT rubber compound with cutting edge equipment, up-to-date technology, complete detection measures and scientific and rigorous management methods, has successfully produced a wide range of 10kV1000 kV alternating current composite insulators, ±500 kV±1100 kV direct current composite insulators, composite post insulators, composite cross arm insulators, composite windage yaw insulators, railway composite insulators, composite interphase spacing rods, permanent magnets indoor high voltage vacuum circuit breakers, handcart circuit breakers, high and low voltage complete sets of equipment, high and low voltage bus and bridge, outdoor box-type substation all of which are up to the domestic and international advanced level of similar products in the key technical data .
The composite insulators made by the company have passed the various types of composite insulator test, including technical identification and product qualification, for which the Company has been listed as the number one qualified supplier to China National Power Grid Corporation and the Southern China Power Grid Corporation with the composite insulators being sold throughout the country.
 The composite insulators researched and developed by the Company are also up to the purchasing standards of the railway electrification system of Ministry of Railways with all data satisfying the technical requirement of high-speed electrified railway, which have passed the certification of the CRCC Certification Center of the Ministry of Railways that has issued the administrative license to
the Company. Therefore, the composite insulators made by the Company have been widely applied in Shenyang Railway Bureau, and Beijing Railway Bureau etc. For instance, the Company won the bidding in the reconstruction project of the electrification system in Beijing-Taiyuan that has kept safe operation ever since. In addition, the composite insulators made by the Company also won the bidding in Indian and Vietnam with well sale performance overseas.
   Moreover, high and low voltage complete set of cabinets ,and high voltage vacuum circuit breaker, have been widely used in the national key projects, included in “Supplier List” by PetroChina, Sinopec, Datang Telecom  and  China Power Investment Corporation, etc. and also become a network company in Shougang Corporation, Wuhan Iron and Steel (Group) Corp and CRH (China Railway High-Speed).
 The Company has also carried out a comprehensive, multi-level close cooperation with some international renowned electric companies like ABB, SIEMENS, and Eaton Electrical, etc. The product of LVM-12 indoor permanent magnetic vacuum circuit breaker made by the Company realized the status of switching-on without bounce, which was awarded the National Prize of Progress in Science and Technology. High and low voltage complete sets of cabinets and other products were included in “New Technology Directory for Key Application by National Power Grid Corporation.”
    Focusing on the long-term relationship based on mutual benefit and cooperation, the Company, the whole employees of Longxin, firmly hold the business motto: “Excellence Lying on Persons, Working Together and Sharing Together” to provide customers with comprehensive application solutions through collaboration with people from all walks of life. Through cooperation with all walks of life, the Company will pay a great attention to the shaping of “Liangjian” Brand by supplying customers with high-quality products and the best service and paying back to society. "Quality first, reputation first" is the eternal goal of the Company, we are willingly to cooperate with all professionals and business elites to create a win-win situation.