WSP 110 · Welding Standard ProcedureSession 5 · Hour 1 · Prepare and jigInstructor cue 걸음부터.90 minNow Open · 5 min left · next Demo한ENScriptBodyClearHour 1Prepare and jigHour 2Groove and rootHour 3Tack with careHour 4Sequence and cleanThis browser cannot play the film.CheckA design that cannot be built is not a design. Tack not at ends. Butt then fillet. Clean first.