Weather resistant steel for bridgework  section properties of universal beams with 1mm and 2mm weathering allowances 
Constrado 
 - Croydon  Constrado  c1983 
 - 19 p.  30cm 
<br/><br/>Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bridges--Design and construction--Tables<br/>Girders--Tables
<br/><br/><label>Dewey Class. No.: </label>624  / .257