The Definitive Guide to Cold Welding Table of ContentsSome Known Questions About Underwater Welding.Indicators on Underwater Welding You Need To KnowNot known Facts About Mig Welder9 Easy Facts About Spot Welder DescribedOur Underwater Welding IdeasThe nozzle axis is 90 to the level head, as well as the add-on weld includes a 3/8-inch fillet weld.