1. Machine tool structural steel

Requirements: high rigidity, good shock absorption, stability, and avoid deformation.

Gray cast iron

Application: large foundation parts such as bed, column, workbench, etc.

Features: low cost, good shock absorption, but low tensile strength. Ductile iron

Application: structural parts that bear high loads (such as heavy machine tool bases).

Features: strength close to steel, with the shock absorption of cast iron.

Welded structural steel

Application: lightweight machine tool frame, which requires welding processing