BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD SPECIFICATION FOR PULLEYS FOR BELT CONVEYORS. IS : 8531 - 1986 

 - 3rd rep. ed.  1998 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  PULLEYS FOR BELT CONVEYORS
<br/><br/><label>Dewey Class. No.: </label>621  / BUR