... suspension system profile,many size and shapes are avaiable here! ceiling grid:1.to fix mineral fiber board or PVC laminated ... gypsum board.2.avaiable models(1)32Ha.main tee:24*32*3.0m,or 3.05m,3.60m,3 ... .26mm,0.28mm,to 0.30mm(2)38H:a.main tee:24*38*3.0m,or 3.05m,3.60m,3.66mb ... 0.30mmmateriad:galvanized steel,painted coating stell or aluminum alloy ceiling T-bar