Tianjin Erit International -

Tianjin Erit International

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glass beads for road marking
Specification: kinds of
Detail: The Glass beads for road marking] Appearance Colorless and Tran***rent ball,no visible bubbles and impurity Density 2.4~2.6g/cm3 Roundness >=80% Refractive index >1.5 Composition Sio2>68% ¡¡ [Use of The...


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