Ключевые слова: arc, controlled, craftsman, diligently, executing, experienced, fabrication, heat source, metal fabrication, metal joining, metallic bond, metallic structure, metalwork, molten metal, precise, procedure, professional, protective gear, quality control, safety precautions, skilled, technician, weld pool, weld seam, welder, welding, welding certification, welding electrode, welding equipment, welding mask, welding position, welding process, welding sparks, welding standards, welding techniques, worker,