is a process developed by the International Meehanite Metal Co. Ltd., Reigate (England). The magnesium treatment of cast iron melts forming the nodular graphite is carried out not before the casting in a ladle, but directly in the casting mould. The process uses a granular powder, which in addition to magnesium also contains calci- um and silicon, and therefore acts as an injection agent in the sense of mould injection.