Name：Calcium silicon magnesium Introduction： ●Mn40Ca10Si deals with primitive iron liquid of poor quality, and is able to effectively enhance its strength and eliminate defects in cast pieces; ●Ba＜3% increase the tensile strength and hardness; ●Ba＞6% D+E types of graphite emerges in cast pieces; ●Ba7-8% Quadrate lumpish graphite emerges in cast pieces; ●Ba＞8% Austenite dendrite appears well developed, with its primary axis shortened and its secondary axis extended.