Solutions
Innovation
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-Founded in 2005
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-18 years experience
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-20000 production area
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-4 Product series
Case Studies
ABOUT US
Breakthrough
company
INTRODUCTION
Ningbo Joiwo Explosion-proof Science & Technology Co., Ltd mainly provides integrated services for industrial telephone communication systems, video intercom systems, public broadcasting systems,emergency voice communication system and other industrial communication systems. It also provides wholesale and sales services for a series of products, including IT products, internal emergency communication systems, industrial telephones, explosion-proof telephones, weatherproof telephones, tunnel fiber optic telephone broadcasting systems, integrated pipeline corridor fiber optic telephones, visual emergency telephones, emergency dispatching communication systems, network products, monitoring products, etc.
Joiwo products meet ATEX, CE, FCC, ROHS, ISO9001, and other international standards, serving 70+ countries worldwide. With in-house manufacturing for over 90% of core components, we ensure quality, stability, and reliable delivery, providing one-stop service from design and integration to installation and maintenance.
NEWS
Service First
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Why is Brass the Industry Standard Material for a Fire water nozzle?
In fire protection, the nozzle is the final control point between a pressurized water supply and a fast-moving emergency. Its material determines whether flow remains predictable after years of standby, exposure, vibration, and rough handling. For industrial facilities, marine operators, distri...
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How to Test Your Fire Nozzle Flow Rate Accurately on the Fireground
On the fireground, a nozzle that looks effective may still be underflowing—and that difference can decide whether an attack line overcomes the heat release rate or falls behind it. Measuring actual discharge gives crews hard data on GPM, nozzle reaction, pump discharge pressure, hose friction l...