... 3.Suitable for all kinds of ceiling 4.Elegant appearance, 5.Strong intensity. Grid keel Feature:1) Strong intensity,Non- ... gypsum ceiling, Mineral fiber ceiling, gypsum ceiling, calcium silicate ceiling;4) Used to make ceiling for office, shop and other spaces;5) Materials: Galvanized steel ... cross tee: 1.35pcs/m2Wall angle: 0.2pcs/m2Grid keel Specification:Thickness: 0.23-0.40mm.The thinkness and size ...