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In the steel classification system, the last two digits refer to ____.
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Q11: In EGW, the molten weld pool is
Q17: Portable welders often have _ or _
Q22: Because _ costs are figured on an
Q24: In the identification system for mild steel
Q26: _ should be mounted around the floor
Q28: _ controls the size of the arc.<br>A)
Q38: When using hydrochloric acid in an etch
Q53: If more than one torch is to
Q70: Acetylene is produced by mixing _.<br>A) acetyl