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