... RP) 2-dia: 50-500mm 3-Ash content: less than 0.5 4-wooden case packing 5-office near to ... xingang port Graphite electrode (RP)Main material is ... calcined coke and coal tar pitch as binders , via burdening, mixing, extruding, baking, (dipping), graphitizing, and machining to ... and thermal conductivity, excellent resistance to oxidation, high thermal shock resistance ...