close-up of skilled welder using torch on brass metal tubes

active brass bright bronze building careful closeup concentration concept connector coupling craft craftsmanship device district electric element equipment expertise extreme fabrication firework flaming focus glove gloved glowing handling hands heating highlights indicate individual industrial industry intensity light machinery machining manufacturing mechanic metal metalwork metalworking precision product protection protective required safety showcasing skilled soldered sparkler sparks temperature together torch tubes welder welding worker works workshop workwear