... laminated gypsum board.2.avaiable models(1)32Ha.main tee:24*32*3.0m,or 3.05m,3.60m,3.66mb ... 2m,or 1.22mc.cross tee:24*26*0.6m,or 0.61md.wall angel :24*24*3.05m,or 3.60me.thickness ... 0.28mm,to 0.30mm(2)38H:a.main tee:24*38*3.0m,or 3.05m,3.60m,3. ... 2m,or 1.22mc.cross tee:24*26*0.6m,or 0.61md.wall angel :24*24*3.0m,or 3.60me. ... 30mmmateriad:galvanized steel,painted coating stell or aluminum alloy ceiling T-bar