man welding sheet matal using arc welding

acetylene arc artificial automatic automation bars blowtorch boilermaker bonding bottle bright burn closeup control danger detail electrode employee engineer engineering equipment fabrication factory flame flaming flare flash fly flying gas gloves goggles heat helmet indoors industrial industry iron ironwork ironworker job light man manufacture manufacturing matal metalwork metalworker plasma shearing sheetmetal smoke spark sparks steel suite thick torch type wearing weld welder welding workerm workshop