YOU CAN COUNT ON CORRELL: Correll was established in 1969 and has been in business for over 50 years. ST Seminar Tables (TFL) Built for the harsh demands of Commercial use. 2 sided Laminate top is sealed on both sides preventing moisture from entering the table and causing warping. With our out Standing Customer Service, innovative new product lines, and the largest selection of Folding Tables available from any manufacturer, now, more than ever, you can count on Correll.