42887 ⎘
Arc welding or cutting; Seam welding; Backing means; Inserts with backing means disposed under the seam the backing means being a ring or sleeve
Heat exchanger for cooling cracked gas
#2Pressure vessel and method of welding a pressure vessel sidewall and end cap together
#3Pipe repair and the methods for operational fixing and definitive welding thereof
#4Pipeline system of pipe sections with pre-assembled insulating weld backing rings and method of making same
#5Connections for isolated phase bus enclosure
#6Lined sleeve for tube welding
#7Integral backing ring for stub shaft weld repairs of rotating equipment and related method