... products: mainly used for machining high speed steel, cast iron and so on. Vitrified products seriesVitrified products have the features ... CBN products: Mainly used for machining cast iron (allow cast iron ,chilled cast iron ,nodular cast iron ,etc),steel(45#,55#,20Cr, ... for machining metallic material such as chilled cast iron ,founded alloy steel ,titanium alloy and so on . Electroplated products We ...