The standard thin-flange Double Tee with composite topping, and the thick-flange. Double Tee, are used for moderately loaded applications, such as floors for most. warehouses, office buildings, schools, shopping malls and parking garages. Cast-in-. place concrete topping provides a smooth, level floor surface that serves as the. horizontal diaphragm.
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How to Use a Groupon Promo Code. 1  Verify the coupon discount on your coupon code. There may be different discounts for Groupon Goods, Getaways, and Local Deals. 2  Add Groupon deal to cart by clicking the big green BUY! button. Youw ill automatically be directed to cart. 3  Click the check box in cart that says Use a promotion or gift code.