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End-to-end customized Wiring Harness services for Automotive, Industrial, Medical, and Consumer Electronics.
Designed for infotainment, powertrain, sensors, and lighting. High-temperature resistance and anti-vibration for strict automotive standards.
IATF 16949 CompliantBuilt for automation, robotics, control cabinets, and heavy equipment. High flexibility and noise immunity for harsh industrial environments.
Oil Resistant · DurableUsed in patient monitors, ultrasound, and surgical devices. Biocompatible materials with ultra-high reliability, meeting FDA / CE requirements.
ISO 13485Ideal for smart homes, wearables, and AV devices. Supports USB-C, HDMI, and fine Coaxial Cables for superior performance and sleek design.
Ultra-slim · High-speedSince 1991, Sum Wai has been a professional manufacturer of wire & cable assemblies. Enriched by over 30 years of industry experience, we specialize in: High-performance Industrial Cables, Automotive wire harnesses, Medical Grade Cables, Consumer electronic cables, and AC/DC cables.
Our factory in Dongguan covers 2,000 square meters, ensuring large production capacity and prompt delivery. We provide a one-stop solution from bare wire extrusion to terminal crimping, connector soldering, and over molding.
ISO 9001 Quality System
In-house Lab · Global Standards
Rapid Prototyping & Bulk Delivery
Serving Top Global Brands
Build a strong partnership with us — from concept to mass production, we deliver reliable wiring solutions. Get a free sample and quote today!
Contact Sales TeamCONTACT US
To: Dong guan Sum Wai Electronic Co,. Ltd.
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