filler metal
surfacing
T-butt joint
helix angle of production
corner joint
electrode extension
contact electrode
excessive penetration
oxide inclusion
post weld heat treatment
welding
mill test certificate
tensile strength (Rt0.5, Rp0.2 or ReH)
shielded metal-arc welding SMAW
dwell time
gas metal-arc welding GMAW
shielded carbon-arc welding SCAW
faying surface
welding procedure approval record, WPAR