Manual welding, manual welding, neat poor, easy to produce porosity slag.
手工组焊，手工作业，焊接工整性欠佳，易产生气孔夹渣。
Through hole components welding using traditional manual welding or soldering.
传统的通孔元件的焊接采用波峰焊或手工焊接。
The manual arc welding normally refers to the manual welding using coated electrode.
手工电弧焊通常是指采用药皮焊条的手工焊接法。
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