WGN 100 · Welding BasicsSession 4 · Hour 1 · The jointInstructor cue 이음에 이름. 그다음 패스.90 minNow Open · 5 min left · next Demo한ENScriptBodyClearHour 1The jointHour 2Follow The jointHour 3Your turn · The jointHour 4Check The jointThis browser cannot play the film.CheckName the joint. Then the pass. Week 4: name, order, result. Then Name the joint. Then the pass.