Cast Iron is individed to four types: gray iron, ductile iron, malleable iron, vermicular cast iron, abrasion-resistant cast iron and corrosion resistant cast iron.
Generally, we mainly use sand casting method to make iron castings, such as green sand casting, resin sand casting, Sodium silicate sand casting , lost foam casting and centrifugal casting.
Gray iron: HT150, [...]

Method: Sand Casting, Resin Sand Casting
Material: Gray Iron , Ductile Iron
Good surface finish and strictly dimension control

Method: Sand Casting, Resin Sand Casting
Material: Abrasive-resistant cast irons
Abrasion resistant cast iron materials are white, carbide-solidified cast iron materials