In this video, you'll see how to weld a large steel structure. This is a factory shed or warehouse construction, where we're joining heavy steel beams together. This welding is being done using arc welding, also known as shielded metal arc welding (SMAW). This video will give you a great up-close view of the sparks and flashes of welding.In this video, you'll see how to weld a large steel structure. This is a factory shed or warehouse construction, where we're joining heavy steel beams #welding