Tensile strength of steel used in rails should not be less than____________________?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. 450 MPa
C. 850 MPa
D. 500 MPa
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.