I have been hooked on these Pakistani production videos for a long time! These people are amazing!Wow…. Welding aluminum. It is one of the most difficult materials to weld because the instant between liquid and solid is so fast. There’s a special skill and training to be able to weld aluminum. I’m in impressed.I used to be a foundry worker. I'd handle smelted iron all day, and I'd cut off aluminum castings. It's hard work!