An automatic valve comprising a valve seat with first gas flow passages extending there through, and a valve guard having second gas flow passages extending there through. The financial statistics preferably include: at least one of historic annual sales, annual sales growth rates, and time since found to exceed selected annual sales thresholds, gross margins, SG&D, R & D expense, EBIDTA, cash flow from operations, market capitalization. The rapid, intense heating of the ceramicmetalceramic sandwiches using the defocused laser beam results in diffusive conversion of the refractory metal foil into the ceramic and in turn creates a strong bond therein.