WSC 110 · Welding Construction
Session 4 · Hour 1 · Heat has a map
Instructor cue 열에도 지도가 있다.
90 minNow Open · 5 min left · next Demo

Heat has a map. Hottest at the puddle.
CheckTorch the T on 20 mm. Keep the cool under critical. Preheat in band. HAZ named.