welder worker performs jump welding. man welder in protective gloves performs arc-welding process of metal structures. flying spar

arc arcwelding assembles assembly background blaze bright clothes connect construction dark electric equipment fabricate fire flame flash flicker flying gas glove gloves hand helmet hot industry iron join jump labor light machine man manual mask metal oxyfuel people performs pipe process protection protective site spar spark sparks stairs steel structure structures tool torch weld welded welder welding work worker workshop