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YUYAO JOYWEE ELECTRICS CO., LTD. has been a trusted manufacturer since 2007, delivering high-performance waterproof junction caps, pressure line caps, and electrical enclosures with superior durability and long-term insulation.
Founded in 2007, Yuyao Jiaowei Electric Appliance Co., Ltd. specializes in the design and manufacturing of high-quality waterproof electrical components. Our core products include waterproof junction caps, pressure line caps, and junction boxes filled with high-vacuum insulation silicone resin — a formulation that remains non-curing and crack-resistant for long-term reliability.
We are committed to excellence in engineering and material science, ensuring every product meets rigorous standards for tensile strength, waterproof performance, and durability. Our waterproof isobar hats are trusted by industrial and commercial clients worldwide.
Quality Guarantee
Founded
Discover our range of waterproof electrical enclosures and connectors, designed for maximum durability and safety in harsh environments.
Model: JW1030
Product No.: JW1000
Model: JW2000 Series
Model: JW-PLC50
Model: JB-300
Model: ISB-10
Model: IWC-75
Model: SFE-200
Model: MWC-10
Model: OEC-50
Model: HDJB-400
IP68-rated seals and vacuum silicone insulation ensure complete protection against moisture and dust.
Soft wire joints withstand >8kg pull; hard wire joints exceed 12kg for secure, long-lasting connections.
We stand behind our products with a comprehensive five-year quality guarantee.
Multiple utility model patents protect our innovative engineering and performance.
Founded
Global Clients
Patents
Units Delivered
A waterproof isobar hat is a protective electrical connector cap designed to seal wire junctions from moisture, dust, and environmental damage. It uses internal silicone resin to create a vacuum seal that remains flexible and crack-free over time.
Our products use high-vacuum insulation silicone resin (non-curing), UV-resistant ABS or polycarbonate housing, and corrosion-resistant metal contacts to ensure long-term performance.
Yes, we support OEM/ODM services. Contact us with your specifications for tailored solutions.
All Joywee products come with a 5-year quality guarantee against manufacturing defects.
Our manufacturing processes follow international quality standards. Specific certifications available upon request.
For inquiries, quotes, or technical support, visit our official website to reach our team directly.
Visit Official Website
No.105 Hujia, Jiulei Hill
Yuyao, Zhejiang, China
Tel: 135 8693 3029
Fax: 0574-62605789
Email: info@joywee.cn
QQ: 741230299
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