00274nam a2200109Ia 450000500170000000800410001708200150005810000150007324500250008826000430011330000080015620260224041044.0260224s9999||||xx |||||||||||||| ||und||  a671.52 ROS  aB  E Rossi 0aWelding engineering.  aNew York: Mc-Graw-Hill Book Co. c1954  a786