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200kg 350kg 500kg Graphite Crucible Sic Graphite Crucibles for Melting Copper, Aluminum and Gold, Find Details and Price about Graphite Crucible Alumina Graphite Crucible from 200kg 350kg 500kg Graphite Crucible Sic Graphite Crucibles for Melting Copper, Aluminum and Gold - Qingdao Zhongye High Temperature Materials Co., Ltd.