- Metlfab Incorporated has supplied the Electronics Industry with precision fabrications and machined components for over 20 years. Our family of 80 employees is housed in a modern 49, 000 sq. ft. facility located in rural Frederick, Maryland. Utilizing state of the art equipment, Metlfab is capable of providing it's clients with a competitively priced, quality product, delivered on time. Services ...www.metlfab.com