Specification for pipe wrenches.  Part 1.  Stillson type wrenches / 
British Standards Institution. 
 - 13 leaves :  illustrations ;  21 cm. 
 - British standard ;  BS 3594 : Part 1 : 1963 .
 - British standard ;  BS 3594 : Part 1 : 1963 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Torsion testing.<br/>Proof loding.<br/>Pipe wrenches.