European machine tool castings are made of gray cast iron, nodular cast iron and steel castings.

1. Gray cast iron: Gray cast iron is a common cast iron material, which has good wear resistance and corrosion resistance, and is often used to manufacture the base, bracket, gearbox and other parts of European machine tools.

2. Ductile iron: Ductile iron is a kind of cast iron material with high strength, good toughness and good heat resistance, which is often used to manufacture spindle, slider, guide rail and other parts of European machine tools.

3. Steel castings: Steel castings are high-strength and high-hardness casting materials with excellent mechanical properties and wear resistance, and are often used to manufacture parts such as tool rest, tool rest and main bearing seat of European machine tools.