... Description Genuine Wholesale Natural Ore Mineral Specimen Stone Raw Ore Mineral Ore Lumps OEM Offered Brown Aluminum Oxide, Brown ...
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... Gemstone Uncut Sapphire Good Quality Raw Material The Meaning and Power of the Blue Sapphire Stone When most people hear sapphire, ...
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...rods, Wholesale Lab Created Blue Sapphire Crystal Gems Heat Resistant Raw Gemstone, Lab Grown Blue Sapphire Crystal Stone Raw Material All Co...
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... and B2O3. Plate-like crystal structure, small pores and more closed pores, and the porosity is equivalent to that of fused , with ...
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Products Description Material corundum raw material Color 8# Stone Material corundum raw Shape none Cutting none Size none Weight none Deliver Date 1-...
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...CBN (cubic boron nitride) is a very hard material, harder than traditional (aluminum oxide) abrasives, so it is more suitable for high-spe...
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... the gemstones. If there are scratches, the gemstone hardness is lower than that hardness marked on the pens. It includes:1, Talc 2, Gypsum 3...
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