I had two steel table legs fabricated for a dining table. It is made from flat steel of size 80mm x 8mm (3.15in x 0.3in). It looks like a rounded square and the size of each leg is 700mm x 700mm (27.5in x 27.5in) . When I tried to attach a wooden table top, I noticed a bit of wobble. The wooden table top is around 1500mm x 800mm x 50mm (59 x 31 x 2 in)and weighs around 30kg (66lbs). I was thinking of adding three cross supports to prevent this wobble. Would this be a way to do it? Or can someone perhaps suggest a better type of support for connecting both legs? Many thanks!