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moissanite gemstone

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Synthetic Lab Created Transparent SIC Single Crystal Rough Material for Gemstones Description: Silicon carbide commonly known as carborundum, gem name drill pulp, for silicon and ...
Shanghai, china
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Custom Single Crystal Sapphire Lens Optical Glass Windows Why choose the sapphire? Sapphire is a precious gemstone, a variety of the mineral corundum, an aluminium oxide (α-Al2O3). ...
Shanghai, china
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