ceiling t gird for suspened system 24T grid, 15T grid, 17Tgrid.... ceiling t gird system24T G.I Plain tee(32H): Material : Pre-painted steel coil and stainless steelMain bone----24x32x3600/3660mm Cross bone A---24x26x1200/1220mm 24x24x1200/1220mm Cross bone B---24x26x600/610mm 24x24x600/610mmWall angle---- 23x23x3000mmThickness avaliable: 0.27mm, 0.3mm, 0.35mm, 0.4mm ceiling t gird system