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50 Mesh, 97% Carbon Content, 180-300 Times Expansion Ratio, Expanded Graphite From Qingdao Factory, Find Details and Price about Graphite Expanded Graphite from 50 Mesh, 97% Carbon Content, 180-300 Times Expansion Ratio, Expanded Graphite From Qingdao Factory - Qingdao Kanglong Graphite Co., Ltd.