Aluminum ceiling specification: 1 ceiling tiles 2,It is made by the good quality materials and professional work teams 3,Nice looking 4.easy to install. 1,All products of Ceiling system(Ceiling Tile) is made by the good quality materials and professional work team , it is wit h nice looking and easy to install . 2,We can make any size by orders, becuase we have 15 years of experience to build up the molds ,also , the perforation can be at 1.0mm,1.8mm,2.3mm.3.0mm,5.0mm,10mm ,etc. 3.common size: 600*600 500*500 400*400 300*300 300*600 300*1200 600*1200 thickness: rang from 0.50mm to 1.0mm Tip; any size can be made by your order