What is the Difference between deformed bar and tor bar?

Deformed bars and tor bars are both types of reinforcing steel bars used in concrete construction, but they differ in their surface design. Deformed bars have a patterned surface with protrusions that enhance bonding with concrete, providing better structural strength. Tor bars, on the other hand, are characterized by their twisted surface, which also improves adhesion but offers a different mechanical interlock. Both types are used to reinforce concrete but may be preferred in different applications based on specific engineering requirements.