... sulfur. 3 Absorption rate Steel enterprises in the use of the steel carbon The so-called recarburizer ... Smelting method similar to conventional Cupola Melting: the use of pig iron, scrap, steel scrap, iron ... charge; synthetic cast iron production process: the use of new scrap charge, using carbon to ... scrap. Popular to say, by carbon agent, we can use the worst ( scrap ) make the best ( casting ...