Calcined/Graphitized Petroleum Coke,CPC,carbon additive 1.low impurity 2.low sulfer& fast delivery 3.ISO,SGS,MSDS [Product Description]Our product recarburizer has some good qualities, such as high carbon, low sulfur, low nitrogen, less harmful impurities and so on. It is a new material of steelmaking operation, improving technology, improvement in the quality of the liquid steel which also ...