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.
âMerchants make money from running deals on Groupon as Groupon customers typically spend more than the value of a deal and 91% return or plan to return to the business. Plus, thereâs no upfront cost to sell on Grouponâwe donât make money until you make money.â.
This is a great way to shop for yourself and the holidays for free. 1  Zulily â $15 store credit for new referrals. 2  Groupon â $10 in Groupon credit for each referral when they make their first purchase. 3  LivingSocial â Get your purchase free when 3 friends purchase through your link.  Totsy â Invite friends and earn $15 in Totsy credit.