Mannesmann weldless steel tubular poles 

 - Dusseldorf  Mannesmannrohren-Werke  s.f. 
 - 114 p.  ilus., láms. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>FABRICACION<br/>POSTES
<br/><br/><label>Universal Decimal Class. No.: </label>A/621.319223/M22