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Shenzhen ThreeNH Technology Co., Ltd.
Shenzhen ThreeNH Technology Co., Ltd Since 1998, 3nh has been a professional factory with 20 years experience on color and glossy measurement industry.
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4mm Aperture 3nh NR4520 Reflectance Test Meter Whiteness Brightness Tester FCC

Shenzhen ThreeNH Technology Co., Ltd.
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4mm Aperture 3nh NR4520 Reflectance Test Meter Whiteness Brightness Tester FCC

4mm Aperture 3nh NR4520 Reflectance Test Meter Whiteness Brightness Tester FCC

NR4520 Whiteness Meter This model NR4520 whiteness meter is used to determine the ISO R457 whiteness, CIE whiteness,ASTM E313 whiteness, yellowness Yl, reflectance of objects, and it is widely used in ...

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