... kind of refractories, etc.G-High Graphite Petroleum Coke could promote the nucleation of the graphite in ... observation, the features of G-High Graphite Petroleum Coke are as the following:First, it can greatly ... .jpg' , 'http://i00.i.aliimg.com/photo/v2/699890090_2/Low_Nitrogen_Graphite_Petroleum_Coke.jpg' , 'http://i00.i.aliimg.com/photo/v2/699890090_3/Low_Nitrogen_Graphite_Petroleum_Coke.jpg' ...