... .Surface treatment: Hot-dipped galvanized, Painted HOT DIPPED GALVANIZED FLOOR GULLY GRATING Bearing bar pitch: 30, 40, 60mm etc.Cross bar ... 100mm etc.Surface treatment: Hot-dipped galvanized, Painted Steel Grating Mesh is made by welding with flat steel and bars ... processes. The products enjoy the feature of high strength, light structure, high bearing, convenience for loading and other propertier. ...