Metal for a girder (4)
I believe the answer is:
iron
(Other definitions for iron that I've seen before include "Metal (that may be wrought)" , "great strength" , "Metallic element, symbol Fe" , "Hard metal" , "Decrease" .)
I believe the answer is:
iron
(Other definitions for iron that I've seen before include "Metal (that may be wrought)" , "great strength" , "Metallic element, symbol Fe" , "Hard metal" , "Decrease" .)