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DUOYI ELECTRONICS（hong kong）LIMITED
3rd Floor, Building 1, Jinshan Industrial Park, Jinshan Avenue, Nancun Town, Panyu District, Guangzhou City, Guangdong Province
duoyimeter@gmail.com
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Duoyi manifold Affordable and easy to use 2025 NEW
Make Digital Manifolds Affordable 💰 Duoyi dy519 ✅ Pressure Holding Test 🔧 ✅ Vacuum Ratio Display 📊 ✅ Accurate Readings 🎯 🔥 #DuoyiManifold #HVACTools #Refrigeration #DigitalManifold
Duoyi manifold Affordable and easy to use 2025 NEW
Make Digital Manifolds Affordable 💰 Duoyi dy519 ✅ Pressure Holding Test 🔧 ✅ Vacuum Ratio Display 📊 ✅ Accurate Readings 🎯 🔥 #DuoyiManifold #HVACTools #Refrigeration #DigitalManifold
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Duoyi’s First Successful Exhibition at the 2025...
Guangzhou Duoyi Electronics Co., Ltd. participated in the Beijing China International Exhibition and will attend its first exhibition in 2025. The next event will be the China hvac Refrigeration Expo...
Duoyi’s First Successful Exhibition at the 2025...
Guangzhou Duoyi Electronics Co., Ltd. participated in the Beijing China International Exhibition and will attend its first exhibition in 2025. The next event will be the China hvac Refrigeration Expo...
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Duoyi Successfully Concludes the 2024 Trade Sho...
Duoyi to Participate in the 2025 China Shanghai Refrigeration Expo Exciting new products will be showcased, including advanced digital manifolds, refrigerant leak detectors, refrigerant quality analyzers, and more. We welcome...
Duoyi Successfully Concludes the 2024 Trade Sho...
Duoyi to Participate in the 2025 China Shanghai Refrigeration Expo Exciting new products will be showcased, including advanced digital manifolds, refrigerant leak detectors, refrigerant quality analyzers, and more. We welcome...
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Quick overview of all DUOYI ground resistance t...
DY4100: 3-wire ground resistance, lower price. DY4100A: 3-wire ground resistance, photovoltaic voltage, more convenient to use. DY4100B: 4-wire ground resistance, photovoltaic voltage, soil testing, easy to use. DY4300: 4-wire ground...
Quick overview of all DUOYI ground resistance t...
DY4100: 3-wire ground resistance, lower price. DY4100A: 3-wire ground resistance, photovoltaic voltage, more convenient to use. DY4100B: 4-wire ground resistance, photovoltaic voltage, soil testing, easy to use. DY4300: 4-wire ground...
