Detailed product description: 1) Material: galvanized steel or aluminum 2) Size: 300 x 300mm, 600 x 600mm, 800 x 800mm, 300 x 1,200mm, 400 x 1,200mm, 600 x 1,200mm 3) Thickness: 0.4-0.8cm 4) Surface coating: outdoor polyester powder coating5) Style: plane, perforated, lay-in, clip-in or as per your request 6) Quality guarantee: surface color can be stable for 10 years by indoor useProduct merits: 1) Surface smoothness and easy cleaning2) High precision, rigidity and consistency3) Strong corrupt proof, weather proof and chemical proof 4) Surface color stable for 10 years' indoor use 5) Flexible suspension system makes each ceiling tile easily installed and disconnected 6) Easy to match lamps or other ceiling parts 7) FireproofRecommend places for application: 1) Supermarket, marketplace 2) Service station, toll station 3) Underground, air port, bus station4) School, office, meeting room 5) Hall, corridor and toilet 6) Sport center7) Office, store, plaza8) Hotel, restaurant, kitchen 9) HospitalAcoustic abilities: 1) Perforated with SoundTex paper 2) Absorb modulus: NRC=0.7 3) Acoustic level: a) Plain: CAC=40dB b) Perforated: CAC=24dBFire proof ability: pass British Standards Institution fire test (BS476)We also offer interior design and machining service.Packing:Standard carton with Xinjing mark (wood box or hard paper is addible)