Indian Standard : approval tests for welders when welding procedure approval is not required - part 1  section 2 installation and maintenance 

 - New Delhi  Bureau of Indian Standards  1974 
 - 28p.  
<br/><br/> IS : 7318 (part 1) - 1974, (Superseding IS : 1181 - 1967) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Indian Standard