Nisorpa 6 KG Silicon Graphite Crucibles | Crucible Copper Casting Cup | Black Cup Furnace Torch Melting Making Kit -Etegami translates to 'image/image letter'

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Nisorpa 6 KG Silicon Graphite Crucibles | Crucible Copper Casting Cup | Black Cup Furnace Torch Melting Making Kit -Etegami translates to 'image/image letter'Size: 6KG(750ML) This durable foundry silicon carbide graphite crucible is made of 45% carbon, 23% silicon, 26% alumina and 6% silicon dioxide, with a stable chemical properties. The silicon graphite crucible fit for all the furnaces such as coke oven, fuel burner, electric furnace and can withstand a high temperature up to 1800(3272F). The service life of this kind of silicon graphite crucible is about 3 8 times life longer than the foundry clay