FONTREY > Our expertise > Lamellar graphite cast iron This technique has good dimensional stability as well as ease of processing and machining. Grades - GG 20 ; GG-25 Grades - FGL 200 to 250. Please contact us : Lamellar graphite cast iron in Roanne. Fontrey informs you and also offers you : Cast iron foundry company for the creation of custom cast iron parts in Roanne