Langfang HYSF Tech. Co., Ltd.

About

Brand Story

Product Features: Superior tightness, corrosion resistance, pressure resistance & wide environmental adaptability.
In 2016, Ocean Sail launched ultra-durable subsea connectors, ushering in a new era of safe subsea plugs*
In 2017, we stepped into subsea connector industry and built China's largest production base for subsea plugs

In 2019, we rolled out subsea floodlights, underwater IP cameras and subsea monitoring equipment

In 2020, we became the first strategic partner of CAS and signed cooperation agreements with multiple universities
In 2023, we broke the long-term monopoly of international brands in this sector
Realized domestic substitution of our core products, fully interchangeable with mainstream brands including Subconn & Seacon
Now our R&D team has over 10 specialists who have conquered connection technical challenges under deep-sea high-pressure & corrosive conditions
We operate 3 manufacturing bases, serve hundreds of long-term partners, and hold 8 patents plus 1 software copyright

Features: High tightness, corrosion resistance, pressure resistance & strong environmental adaptability
Launched deep-water connectors in 2016, pioneering a new industry era*
In 2017, Ocean Sail built China's leading subsea plug manufacturing base

In 2019, we released underwater products including floodlights, IP cameras & monitoring devices

In 2020, we became the first strategic partner of CAS
In 2023, we ended the long monopoly of international brands
Achieved full domestic production of core products, fully compatible with Subconn & Seacon
Today we have solved connection difficulties under deep-sea high-pressure & corrosive environments
We own 3 manufacturing bases and hundreds of steady partners

Products

Small Circular Watertight Connectors
Gigabit Ethernet Series Watertight Cable Assemblies
Micro Miniature Watertight Connectors
Coaxial Series Watertight Connectors
Split-Type Watertight Connectors Series
Small Circular Watertight Connectors
Small Circular Watertight Connectors Small Circular Watertight Connectors
  • Small Circular Watertight Connectors
  • Gigabit Ethernet Series Watertight Cable Assemblies
  • Micro Miniature Watertight Connectors
  • Coaxial Series Watertight Connectors
  • Split-Type Watertight Connectors Series
  • High-Current Connectors
Small Circular Watertight Connectors
Small Circular Watertight Connectors Small Circular Watertight Connectors
  • Subsea Penetrators
Subsea Penetrators
Subsea Penetrators Subsea Penetrators
  • Watertight Cables & Watertight Opto-Electrical Composite Cables
Watertight Cables & Watertight Opto-Electrical Composite Cables
Watertight Cables & Watertight Opto-Electrical Composite Cables Watertight Cables & Watertight Opto-Electrical Composite Cables
  • High-Pressure Sealed Housings & Junction Boxes
High-Pressure Sealed Housings & Junction Boxes
High-Pressure Sealed Housings & Junction Boxes High-Pressure Sealed Housings & Junction Boxes
  • Buoyancy Spheres
  • Subsea IP Cameras
Buoyancy Spheres
Buoyancy Spheres Buoyancy Spheres
  • Subsea Floodlights
Subsea Floodlights
Subsea Floodlights Subsea Floodlights
  • Subsea Monitoring Equipment
Subsea Monitoring Equipment
Subsea Monitoring Equipment Subsea Monitoring Equipment
Langfang HYSF Tech. Co., Ltd.
  • Business License Business License
  • Hotline:13903320320
  • E-mail:13903320320@163.com
  • Address:Wenquan Leisure & Business Industrial Park, Gu'an, Langfang, Hebei, China

Copyright © 2026 Langfang HYSF Tech. Co., Ltd. All Rights Reserved.beain

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