Kasel described Rail Products as the historical base of the company—supplying track materials to freight, transit, regional, and commuter rail customers—but said L.B. Foster has increasingly emphasized higher-value offerings that help customers operate more efficiently.Management highlighted three acquisitions over the past several decades that it said broadened capabilities and geographic reach: CXT (precast and prestressed concrete), Portec Rail in 2010 (which expanded the company’s presence beyond North ...