00472nam a2200169Ia 4500003000900000008004100009040001600050080001700066100002100083245004000104260004800144300001000192490004800202650001900250650001200269650002100281IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.791bHOU  aHouldcroft, P. T 0aWelding processescP. T. Houldcroft  aCambridgebCambridge University Pressc1967  a194p.  aBritish welding research association series  aNASA thesaurus  aWelding  aWelding machines