... property Steel gratings are adopted to design and produce suspended ceiling, with light structure, attractive appearance, high strength enabling people ... marketplace, bus/railway station, wharf and airport.Common suspended ceiling specification tablespanRecommend model3000×3000(4000×4000)G253/30/100FGG253/40 ... /100FGG323/60/100FGG403/40/100FGG403/60/100FG galvanized steel grid for suspended ceiling