Aluminium ceiling tiles are made of superior quality aluminium plates with the processes of punching, forming, cleaning and washing surface preservative treatment, spray painting with high grade powder. SPECIFICATION: Size: 595x595mm, 600x600mm, 600x1200mm, 300x300mm, 400x400mm, 500x500mm Thickness: 0.6mm, 0.7mm, 0.8mm, 1.0mm Surface: Plane, Perforated Edge: Clip-in , Lay-in Packing: Paper Carton, 20 or 24pcs/ctn Delivery time: within 20work days after your deposit Minimum Qty: 1500 sqm It can be economically loaded with fitting accessories produce by Sinoceiling.com into 1x20'C or 1x40'HC. For more information, pls visi our website and directly send your inquiry to my email.