2223-4861 2223-4861 S2223-48612020000400012 Cuba Cuba 00 12 2020 00 12 2020 47 4 12 21

AWS., American Welding Society 2012 2009 36 3 3 98-103 2017 2014 17 3 3 245-54 2012 ISO 2401-72 1972 2012 7a 684-5 2011 59 66-74