1. exposed system 2..for suspend ceiling tile 600x600 3..white power-coated 4..various specification Suspended Ceiling T Grid (Exposed)(32*16*3600) (height*width*length)Ceiling T Bar: The main ceiling suspending material to fix Mineral Fiber Ceiling Tiles and PVC Gypsum Ceiling Board,etc.suspended ceiling T grid (exposed) Main tee (Height*Width*Length)42*15*3600mm42*15*3660mm38*16*3600mm38*16* ...