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Gold assaying ceramic cupels

(225 products available)

Fire assay Metallurgy MgO Cupel a refractory pot in which gold or silver

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$0.14-0.26
Min. Order: 1000 pieces

Wholesale refractory matter fire assay cupel magnesium oxide cupel magnesite cupel

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$0.14-0.26
Min. Order: 1000 pieces

Factory Custom high quality fire assay magnesia Cupels For Gold Melting

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$0.29-0.79
Min. Order: 1000 pieces

6A 7A 8A fire assay Magnesia bone ash Cupels Bullion Blocks for assaying gold and silver content

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$0.32-0.56
Shipping per piece: $3.02
Min. Order: 1000 pieces

High temperature resistance refractory gold and silver 55g fire assay crucible block cupel for metallurgy

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$0.24-0.79
Min. Order: 1000 pieces

A porous cup MgO 55g gold fire assay crucible assay 6a 7a 8a ceramic cupel for gold analysis

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$0.14-0.26
Min. Order: 1000 pieces

high magnesia content with low moisture percentage MgO Bone Ash Cupel

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$0.14-0.26
Min. Order: 1000 pieces

Clay Fire Assay Ceramic Crucible and Cupel for Gold Assaying

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$0.38-0.66
Min. Order: 1000 pieces