Profile: G & B Specialties, Inc. is a fabricator of railgear and track & signal materials. Our product line includes signal components, switch machine layouts, electric lock, switch point rollers, manual switch stands and track switch rods. Our electric lock is used to securely lock the hand throw lever of a hand operated switch machine or ground throw switch stand in the normal position. Our switch point rollers reduce the force required to move the rails at a turnout location by reducing the friction between the rails and its supporting plates.