BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD HELICAL EXTENSION SPRINGS : PART III DATA SHEET FOR SPECIFICATIONS FOR SPRINGS MADE 

 - 1st rep. ed.  1986 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  HELICAL EXTENSION SPRINGS
<br/><br/><label>Dewey Class. No.: </label>621  / BUR