http://www.danscertifiedwelding.com/ When you are seeking highly specialized welding that is certified, of the greatest quality, when it truly counts this is where you go. Dan's Certified Welding, Inc. (DCWI) focuses on the welding procedure called "Gas Tungsten Arc Welding" (GTAW). The additional names that are used to explain this procedure are "Tungsten Inert Gas" aka "TIG" Welding. Some also refer to this as "heliarc welding" and "fusion welding." This procedure is a very clean procedure of welding. DCWI has been a Boeing approved provider for over 30 years and is also approved by many additional business. We are found at 9830 Everest St, Downey, CA 90242, with contact number 562-803-1554.