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6A 7A 8A Magnesia/ MgO CupelsMagnesia cupel for smelting and assaying, High temperature resistance MgO cupel.Factory magnesia crucibles cupel the gold melting cupel in ceramic.
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Bone Ash Cupel Tapered Cone Cupel TraysAchieve unparalleled levels of purity with our Bone Ash Cupels. Engineered to remove impurities and unwanted elements, these cupels enable you to extract the true essence of your precious metals.
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Jewellery making tools Smelting Bowl melting crucible gold ,PlatinumGold ,Platinum,jewellery making tools Smelting Bowl. High purity and corrosion resistance.