purchase of steel dual desk and bench with book shelf , purchase of steel dual desk and bench with book shelfpractical lab. , steel dual desk and bench with book shelf size of desk : 72” x 18“ x 30“ with bench seat size : 72” x 12“ x 19” with bench rest of size : 72” x 6“ with book shelf of size : 72” x 14“ with frame in inner made out of erw 1” 18 g square tube and leg 1 ¼” 18 g square tube with sheet made out of ss 430 grade 18 gradethickness polished ss sheet double floor with 1” sioe beading all steel frames must be coated with zinc chromate yellow primer and two coats of olive green enamel paint. desk and bench should be provided with three set of legs => limited