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This instrument is a specialized in printing test machine for the brightness, transparency, fluorescence of toilet paper, paper, paperboard, adhesive sticker, and surface of carton. It is not only used to test the transparency, opacity, light scattering coefficient and absorption coefficient of paper, but also the brightness and fluorescence whiteness of coating, ore powder, flour, salt, milk powder, ceramic, textile, and other material.

Paper Whiteness Tester

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