medium temperature tar pitch 1.Material:coal tar 2.Shap:pencil,lump,globular 3.China larger ... ,SGS,ISO 1.medium temperature of tar ptich for graphite electrode,refractory material. 1)Material:coal tar 2)Shap:pencil,lump,globular3)China ... me. ada#bailichem.cn medium temperature of tar ptich for Graphite electrode,refractory material