About Us
关于我们 — 上海朗坤
Company Profile
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.
Partner Brands
Own Brand
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.
Our Culture
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.
Honors & Qualifications
FLUKE Partner of the Year
2025
NetAlly National Distributor Authorization
2024
CCTT Certified Training Center
2023
NetAlly Authorized Training Center
2023
Office Locations
📍 Shanghai (HQ)
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
📍 Nanjing Office
Room 1003, Unit 1, Building 35, Tianruncheng 12th District, Tianhua West Road, Pukou District, Nanjing
📞 18018094486
📍 Guangzhou Office
Room 504, Building 210, Jingxi Shangyuan, Jingxi Street, Baiyun District, Guangzhou
📞 13248233538
📍 Fuzhou Office
📞 18118611699
Company Timeline
Launched EST Next-Gen Cabling Test Simulation System
Self-owned brand EST officially launched, marking strategic upgrade from distribution to independent R&D
Launched EST Next-Gen Cabling Test Simulation System
Self-owned brand EST officially launched, marking strategic upgrade from distribution to independent R&D
Won Three Major Awards from NetAlly
Best Partner of the Year, Best Technical Service, and Best Marketing Promotion
Won Three Major Awards from NetAlly
Best Partner of the Year, Best Technical Service, and Best Marketing Promotion
Co-founded China Training Center with NetAlly
Officially authorized by NetAlly as its fully qualified training partner in China
Co-founded China Training Center with NetAlly
Officially authorized by NetAlly as its fully qualified training partner in China
Awarded NetAlly "Best Platinum Partner"
Recognized as top-tier partner for outstanding market performance and professional service
Awarded NetAlly "Best Platinum Partner"
Recognized as top-tier partner for outstanding market performance and professional service
Signed as NetAlly Tier-1 Platinum Partner
One of the first global platinum partners after NetAlly became independent from NetScout
Signed as NetAlly Tier-1 Platinum Partner
One of the first global platinum partners after NetAlly became independent from NetScout
FLUKE Networks Authorized China Training Center Opened
Official FLUKE training center established at Shanghai HQ, offering CCTT certification courses
FLUKE Networks Authorized China Training Center Opened
Official FLUKE training center established at Shanghai HQ, offering CCTT certification courses
FLUKE Global President Mr. Walter Hock Visited Langkun
Highest-level FLUKE executive visit, underscoring Langkun's strategic partner status in Asia-Pacific
FLUKE Global President Mr. Walter Hock Visited Langkun
Highest-level FLUKE executive visit, underscoring Langkun's strategic partner status in Asia-Pacific
Won FLUKE "Best Regional Distributor" Annual Award
Received highest annual honor from FLUKE Networks
Won FLUKE "Best Regional Distributor" Annual Award
Received highest annual honor from FLUKE Networks
Supported 45th WorldSkills Competition
Provided technical support and testing equipment for the Information Network Cabling event
Supported 45th WorldSkills Competition
Provided technical support and testing equipment for the Information Network Cabling event
Won NETSCOUT Asia-Pacific Sales Award
Received NETSCOUT HNT Asia-Pacific Annual Sales Award
Won NETSCOUT Asia-Pacific Sales Award
Received NETSCOUT HNT Asia-Pacific Annual Sales Award
Contributed to National WLAN Testing Standards
Supported standards promotion and training sessions across Shanghai, Hangzhou, Nanjing and other cities
Contributed to National WLAN Testing Standards
Supported standards promotion and training sessions across Shanghai, Hangzhou, Nanjing and other cities
Signed MicroScanner2 National Exclusive Distribution
Secured exclusive national distribution rights for FLUKE Networks cable testers
Signed MicroScanner2 National Exclusive Distribution
Secured exclusive national distribution rights for FLUKE Networks cable testers
FLUKE APAC President Simon Lee Visited Langkun
Continued high-level attention from FLUKE Networks APAC leadership
FLUKE APAC President Simon Lee Visited Langkun
Continued high-level attention from FLUKE Networks APAC leadership
Consecutive FLUKE Best Partner Awards
Won both "Best Partner Award" and "Best Technical Support Award" for two consecutive years
Consecutive FLUKE Best Partner Awards
Won both "Best Partner Award" and "Best Technical Support Award" for two consecutive years
Won FLUKE "Best Platinum Partner Award"
Stood out among distributors as a platinum-level partner
Won FLUKE "Best Platinum Partner Award"
Stood out among distributors as a platinum-level partner
First FLUKE Double Award
Simultaneously won "Best Partner Award" and "Best Technical Support Award" for the first time
First FLUKE Double Award
Simultaneously won "Best Partner Award" and "Best Technical Support Award" for the first time
Signed FLUKE NMPP National Exclusive Distribution
FLUKE Networks President Arif Kareem visited to sign exclusive national distribution for field maintenance instruments
Signed FLUKE NMPP National Exclusive Distribution
FLUKE Networks President Arif Kareem visited to sign exclusive national distribution for field maintenance instruments
Langkun 10th Anniversary
A decade of growth from regional distributor to East China's leading network testing solutions provider
Langkun 10th Anniversary
A decade of growth from regional distributor to East China's leading network testing solutions provider
First Visit by FLUKE Networks Global President
First high-level FLUKE executive visit, marking a new phase of cooperation
First Visit by FLUKE Networks Global President
First high-level FLUKE executive visit, marking a new phase of cooperation
Nanjing Office Officially Opened
Began building East China regional sales and service network, the first step in national expansion
Nanjing Office Officially Opened
Began building East China regional sales and service network, the first step in national expansion
Distributed Harris Handheld Tool Product Line
Expanded product line to handheld installation and maintenance equipment after FLUKE Networks integrated Harris tools
Distributed Harris Handheld Tool Product Line
Expanded product line to handheld installation and maintenance equipment after FLUKE Networks integrated Harris tools
Shanghai HQ Relocated
Moved to Shenyin Development Building on Wuding Road, Jing'an District, expanding office space
Shanghai HQ Relocated
Moved to Shenyin Development Building on Wuding Road, Jing'an District, expanding office space
Promoted National Network Acceptance Testing Standards
Provided technical support and equipment for national network acceptance testing standards
Promoted National Network Acceptance Testing Standards
Provided technical support and equipment for national network acceptance testing standards
Shanghai Langkun Information Systems Co., Ltd. Founded
Established partnership with FLUKE, becoming one of its earliest distributors in China
Shanghai Langkun Information Systems Co., Ltd. Founded
Established partnership with FLUKE, becoming one of its earliest distributors in China