hebei xinzhuangyi chemical trade co.,ltd -

hebei xinzhuangyi chemical trade co.,ltd

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screen zinc oxide
Specification: 50kg/bag
Detail: Basic property: Molecular formula: Zno Molecular weight:81.39 White or fine spherical powder, specific gravity 5.5£6.5g/cm3, granularity 0.15£0.7¦Ìm, refraction index 1.95£2.05, the specific heat 0.0915c/g¡æ at 20¡æ, ...


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