Welder trade involves joining metal parts using various welding processes such as arc welding, gas welding, and MIG/TIG welding. Welders are responsible for preparing surfaces, selecting appropriate welding techniques, and ensuring strong and durable joints. They work in industries like construction, shipbuilding, automotive, and fabrication. This trade requires knowledge of welding safety, equipment handling, and material properties. Welders also perform cutting and repair work on metal structures. Skilled welders are in high demand across industries and can find employment in manufacturing units, infrastructure projects, and maintenance services.