BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD SPECIFICATION FOR HELICAL EXTENSION SPRINGS : PART 4 SELECTION OF STANDARD COLD COIL 

 - 1st rep. ed.  1996 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 11 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  HELICAL EXTENSION SPRINGS
<br/><br/><label>Dewey Class. No.: </label>621  / BUR