... : 50, 100mm etc. 3.Surface treatment: Hot-dipped galvanized, Painted HOT DIPPED GALVANIZED FLOOR GULLY GRATING Bearing bar pitch: 30, 40 ... bar pitch: 50, 100mm etc.Surface treatment: Hot-dipped galvanized, Painted Steel Grating Mesh is made by welding ... high strength, light structure, high bearing, convenience for loading and other propertier. The hot dipped zinc coating gives the product excellent anti ...