About Us

Shanghai Langkun Information Systems Co., Ltd. was founded in 1999, specializing in network security, network maintenance & troubleshooting, testing solutions, technical training, and equipment supply.
Shanghai Langkun has established comprehensive technical and sales partnerships with FLUKE Networks, NetAlly, and other internationally renowned manufacturers, providing users with portable testing instruments for structured cabling systems, LAN/WAN, wireless network management, and comprehensive solutions across these domains.
Through years of dedicated effort, we have built a robust sales and service network across East China, ready to provide customers with the latest network maintenance, security, and management solutions — anticipating their needs and addressing their concerns proactively. The company operates a training center offering FLUKE Networks certified courses, while our technical testing department delivers a full range of network testing, maintenance, and bandwidth management services.
EST provides professional structured cabling test simulation system solutions. Covering copper, fiber, and wireless WiFi testing training, supporting large-scale concurrent teaching to help students master real physical link testing skills.


Langkun adheres to the core values of "Professionalism, Integrity, Innovation, and Win-Win", driven by customer needs and technological innovation. We have FLUKE-certified CCTT instructors and are a NetAlly fully authorized training center in China.
FLUKE Partner of the Year
2025
NetAlly National Distributor Authorization
2024
CCTT Certified Training Center
2023
NetAlly Authorized Training Center
2023
上海市静安区武定路327号申银发展大厦2604室
Postcode:200041
📞 400-011-8821
Fax:021-52930413
Room 1003, Unit 1, Building 35, Tianruncheng 12th District, Tianhua West Road, Pukou District, Nanjing
📞 18018094486
Room 504, Building 210, Jingxi Shangyuan, Jingxi Street, Baiyun District, Guangzhou
📞 13248233538
📞 18118611699
Self-owned brand EST officially launched, marking strategic upgrade from distribution to independent R&D
Self-owned brand EST officially launched, marking strategic upgrade from distribution to independent R&D
Best Partner of the Year, Best Technical Service, and Best Marketing Promotion
Best Partner of the Year, Best Technical Service, and Best Marketing Promotion
Officially authorized by NetAlly as its fully qualified training partner in China
Officially authorized by NetAlly as its fully qualified training partner in China
Recognized as top-tier partner for outstanding market performance and professional service
Recognized as top-tier partner for outstanding market performance and professional service
One of the first global platinum partners after NetAlly became independent from NetScout
One of the first global platinum partners after NetAlly became independent from NetScout
Official FLUKE training center established at Shanghai HQ, offering CCTT certification courses
Official FLUKE training center established at Shanghai HQ, offering CCTT certification courses
Highest-level FLUKE executive visit, underscoring Langkun's strategic partner status in Asia-Pacific
Highest-level FLUKE executive visit, underscoring Langkun's strategic partner status in Asia-Pacific
Received highest annual honor from FLUKE Networks
Received highest annual honor from FLUKE Networks
Provided technical support and testing equipment for the Information Network Cabling event
Provided technical support and testing equipment for the Information Network Cabling event
Received NETSCOUT HNT Asia-Pacific Annual Sales Award
Received NETSCOUT HNT Asia-Pacific Annual Sales Award
Supported standards promotion and training sessions across Shanghai, Hangzhou, Nanjing and other cities
Supported standards promotion and training sessions across Shanghai, Hangzhou, Nanjing and other cities
Secured exclusive national distribution rights for FLUKE Networks cable testers
Secured exclusive national distribution rights for FLUKE Networks cable testers
Continued high-level attention from FLUKE Networks APAC leadership
Continued high-level attention from FLUKE Networks APAC leadership
Won both "Best Partner Award" and "Best Technical Support Award" for two consecutive years
Won both "Best Partner Award" and "Best Technical Support Award" for two consecutive years
Stood out among distributors as a platinum-level partner
Stood out among distributors as a platinum-level partner
Simultaneously won "Best Partner Award" and "Best Technical Support Award" for the first time
Simultaneously won "Best Partner Award" and "Best Technical Support Award" for the first time
FLUKE Networks President Arif Kareem visited to sign exclusive national distribution for field maintenance instruments
FLUKE Networks President Arif Kareem visited to sign exclusive national distribution for field maintenance instruments
A decade of growth from regional distributor to East China's leading network testing solutions provider
A decade of growth from regional distributor to East China's leading network testing solutions provider
First high-level FLUKE executive visit, marking a new phase of cooperation
First high-level FLUKE executive visit, marking a new phase of cooperation
Began building East China regional sales and service network, the first step in national expansion
Began building East China regional sales and service network, the first step in national expansion
Expanded product line to handheld installation and maintenance equipment after FLUKE Networks integrated Harris tools
Expanded product line to handheld installation and maintenance equipment after FLUKE Networks integrated Harris tools
Moved to Shenyin Development Building on Wuding Road, Jing'an District, expanding office space
Moved to Shenyin Development Building on Wuding Road, Jing'an District, expanding office space
Provided technical support and equipment for national network acceptance testing standards
Provided technical support and equipment for national network acceptance testing standards
Established partnership with FLUKE, becoming one of its earliest distributors in China
Established partnership with FLUKE, becoming one of its earliest distributors in China