The beam supporting structure by the bar, grill combination. Its main features are: integrated large-scale rate of 58% or more, able to adapt to 1.5-2m / s of the high gas velocity requirements, the products made easy, low cost, for as long as a little change in the old plant transformation, we can meet the design requirements on the supporting structure for maintenance, replacement is easy. Our factory can produce AL2O3 content of the Department of <75%, the width of> 40, height <260, length, "section 2500 of the various beams, can produce the width and length <220, height requirements of the user a variety of grille.