crystal paperweight gifts

September 13, 2018

what is the k9 crystal, why we call it as k9 crystal???

What is the k9 crystal? actually it’s need called it as k9 crystal glass ,or k9 glass crystal. According to American ASTM C162-89, crystal glass is defined as a high-transparency, colorless glass commonly used in the manufacture of art or tableware. According to this definition, Cristallo, Bohemian potassium-calcium crystals and Crystalex and lead crystals should […]

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